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Nick Barker (drummer)

Nicholas Howard Barker (born 25 April 1973) is an English drummer renowned for his technical proficiency and contributions to prominent black and bands. Best known as an original member of from 1993 to 1999 and from 1999 to 2004, Barker has also performed with groups including Old Man's Child, Lock Up, Brujeria, and , establishing himself as a key figure in the scene. His style, influenced by drummers such as , , and , features rapid blast beats and complex rhythms that defined several landmark albums in the genre. Barker began playing drums at age 13 and launched his professional career in 1993 at age 20 by joining , where he contributed to their early sound on albums like The Principle of Evil Made Flesh (1994), (1996), and (1998). After departing in 1999, he quickly joined Norwegian band , drumming on influential releases such as (2001) and Death Cult Armageddon (2003), which showcased his ability to blend speed with orchestral elements. During this period, he also collaborated with Old Man's Child from 2002 to 2003 and provided session work for bands like and . In the late 2000s and , Barker's career expanded to include (live 2004; session 2005), (2007–2009), and Ancient (2009–2017), alongside ongoing involvement with grindcore act Lock Up since 1998. He joined Brujeria in 2016 and in 2022, continuing to tour and record despite health challenges. As of October 2025, Barker has been managing stage five chronic , undergoing since 2023 while awaiting a transplant, which has limited his touring but not his passion for the instrument.

Early life and influences

Childhood and family background

Nicholas Howard Barker was born on 25 April 1973 in , . Barker grew up in Chesterfield during a difficult childhood marked by family tensions in a working-class town in the middle of . Born out of wedlock to a 16-year-old , he was raised primarily by his mother and in an unstable home environment. His , a with an appreciation for , played a significant role in his early exposure to through his record collection and the local scene, though their relationship was strained and often abusive, involving physical and mental mistreatment. Barker has shared limited details about his biological father, who was absent and provided no , or any siblings. At some point, he entered . Barker maintains strong ties to his Derbyshire roots.

Introduction to drumming and key influences

Nicholas Barker began playing the drums at the age of 13 in the mid-1980s, during his formative years in , near , . Self-taught, he initially used pots and pans and air drumming before acquiring his first , learning by playing along to tracks such as "" and "." At age 17, while in , his foster parents provided him with a double bass . Born in 1973, Barker immersed himself in the instrument amid the thriving British metal scene of the era, laying the groundwork for his future in . His early development was profoundly shaped by several key influences from the progressive and extreme metal genres. Neil Peart of Rush inspired Barker's pursuit of technical precision and intricate compositions, while Gene Hoglan, known for his work with Death and Dark Angel, influenced his mastery of blistering speed and endurance in extreme metal contexts. Additionally, drummers like Dave Lombardo of Slayer contributed to his appreciation for aggressive rhythms and double-bass techniques, alongside figures such as Clive Burr and Nicko McBrain from Iron Maiden, who emphasized dynamic groove and power, and Pete Sandoval. These 1980s and 1990s icons provided a blueprint for Barker's evolving approach, blending rock's sophistication with metal's ferocity. This period fostered the formation of his initial drumming style, characterized by a fusion of rapid blast beats, complex fills, and high-speed precision tailored to the demands of extreme metal.

Career overview

Early professional work (1990s)

Barker's entry into the professional music scene occurred in the early 1990s when he took on the role of drum technician for the British death metal band Cancer during their tours. This position provided him with crucial industry experience and connections within the UK extreme metal underground. While serving in this capacity, Barker occasionally filled in as a live drummer for Cancer, notably sitting in for regular percussionist Carl Stokes during a performance at the Royal Court Basement Bar in Liverpool on April 9, 1993. Around the same period, Barker contributed to other nascent projects, including the short-lived UK thrash/death metal outfit . He performed drums on their 1992 single Sleep with the Dead, released via Cacophonous Records, as well as their full-length debut Tales of the Macabre in 1993 on Vinyl Solution. These early recordings showcased Barker's emerging technical prowess in blending thrash aggression with intensity, though Monolith disbanded shortly thereafter. In late 1993, at age 20, Barker joined as their permanent drummer, succeeding Was Sarginson and marking a pivotal shift in his career. His recruitment came through connections forged during Cancer tours, where had supported the band. Barker's dynamic and precise playing became integral to Cradle's sound, supporting their evolution from underground demos to a signature gothic style that gained traction in the UK scene amid the mid-1990s surge. Barker departed in early 1999 after six years of intensive recording and touring, subsequently joining Norwegian act . His tenure with Cradle had solidified his reputation as a leading drummer, having anchored the band's foundational releases and live presence during their breakthrough era.

Mid-career expansions (2000s)

Following his early experiences with , which established his reputation in the scene, Nick Barker expanded his career internationally during the 2000s by joining Norwegian band in 1999 as their drummer, replacing . This move marked a significant breakthrough, as he contributed to the band's evolving sound characterized by orchestral elements and aggressive rhythms, while touring extensively across and to promote albums like Puritanical Euphoric Misanthropia and Death Cult Armageddon. The rigorous schedule, including major festival appearances and world tours, elevated his profile but ultimately led to his departure in early due to exhaustion from the demanding touring lifestyle. Barker had joined the grindcore band Lock Up in 1998, contributing drums to albums including Pleasures Pave Sewers (1999) and Hate Breeds Suffering (2002), and deepened his commitment to the project—featuring members from Napalm Death and Brutal Truth—remaining active through the decade with releases emphasizing raw speed and political edge. Barker's diversification continued with his involvement in the grindcore supergroup Brujeria from 2003 to 2005, where he performed under the alias Hongo Jr. and infused the band's satirical, high-octane style—blending grindcore ferocity with death metal growls and social commentary lyrics—with his precise, blast-beat-heavy drumming. This period introduced grindcore and death metal influences to his repertoire, contrasting the symphonic black metal of Dimmu Borgir and broadening his appeal within underground extreme music circles. In 2002–2003, Barker joined Old Man's Child, the Norwegian black metal outfit led by Galder, providing drums that added technical intensity to their melodic yet brutal compositions, further embedding him in the Scandinavian metal community. By 2007, he recorded with British metal band Winter's Thrall on their EP In:Through:Out, demonstrating versatility in thrash and progressive metal structures. These projects, alongside session contributions to Atrocity and Leaves' Eyes in 2008—where he handled drums for their gothic and death metal-infused sounds during tours and recordings—marked a phase of increased visibility and stylistic experimentation, solidifying Barker's status as a sought-after extreme metal percussionist.

Later projects and collaborations (2010s–2020s)

In the early 2010s, Barker expanded his collaborations across various acts, joining the Norwegian band Ancient as their drummer from 2009 to 2017, during which he contributed to their 2016 album Back to the . He also took on session and live drumming roles with Sadistic Intent in 2011, replacing longtime member Emilio Márquez for the Los Angeles-based outfit. In 2015, Barker joined the band , providing live drumming support including their tour with Winterfylleth and appearing on early recordings. Additionally, he recorded drums for the Venezuelan metal project Noctis Imperium's debut album Glorification of Evil: The Age of the Golden Dawn in 2008, with contributions extending into their 2010 EP Nihil. Barker reunited with the grindcore band Brujeria in 2016, resuming his role as (under the Hongo Jr.) after an earlier stint from 2003 to 2005, and has continued involvement as of 2025, including tours supporting their 2016 album Pocho Aztlán, though limited by health challenges. This period overlapped with temporary absences from other commitments, such as stepping away from Ancient for Brujeria's 2016 touring schedule. In 2022, Barker joined the Swedish black metal band as their drummer, contributing to the recording of their self-titled album released in 2023 on , before departing in 2023 amid personal challenges. Barker's current projects reflect a focus on UK-based and acts. He joined the supergroup in 2010, drumming on their 2013 debut Fire on the Mountain and remaining active thereafter. Since 2014, he has been the drummer for the band Liquid Graveyard. Barker began drumming for the crossover thrash band United Forces around 2012, featuring ex-Stormtroopers of Death members and . In 2020, he co-founded the UK band , releasing their debut album At Her Majesty's Pleasure in 2021 on Rucktion Records. The disrupted Barker's international touring in 2020, leading him to leave long-term project Lock Up in April of that year to prioritize UK-centric endeavors and personal pursuits amid global lockdowns. This shift emphasized domestic collaborations, allowing him to maintain activity closer to home while navigating broader industry halts.

Musical style and equipment

Drumming technique and reputation

Nick Barker's drumming is characterized by exceptional speed, , and , particularly in the execution of blast beats and double-bass patterns that define . His blast beats are noted for their razor-tight execution at exceptionally high tempos, often exceeding the capabilities of many contemporaries and establishing a benchmark for black and drumming during the late 1990s and early 2000s. This extends to dynamic control and stamina, allowing him to maintain intensity across long sets without compromising accuracy, as evidenced by his ability to deliver complex fills under relentless pressure. Throughout his career, Barker's style evolved from the raw, aggressive power driving Cradle of Filth's gothic to the symphonic intricacy of , where he incorporated more elaborate rhythms, odd-time signatures, and multi-tom patterns that demanded greater technical finesse. This shift highlighted his adaptability, blending brute force with nuanced dynamics to support orchestral elements while preserving the genre's ferocity. Ash Pearson has credited this progression with raising the bar for percussion. Barker enjoys a stellar reputation among peers for his double-bass prowess and innovative approach, with Fear Factory's praising him as one of the premier extreme drummers he has collaborated with. Anthrax's expressed awe at Barker's work on Dimmu Borgir's (2001), describing it as mind-blowing and a pivotal advancement in independence using both feet. His contributions to genre innovation are evident in Lock Up, where he fused blasts with , amplifying speed and aggression to push boundaries in crossover extreme styles.

Signature equipment and endorsements

Throughout his career, Nick Barker has favored durable, high-end drum kits suited to the demands of , beginning with Premier Drums in his early professional years. By the early 2000s, he transitioned to a custom Pearl Masterworks kit, handcrafted in 10-ply with a 12.5mm shell thickness and 45-degree bearing edges for enhanced resonance and attack; this all-black special-order setup featured a compact configuration ideal for touring, including 10"×10", 12"×12", 13"×13", 14"×14", and 16"×16" toms, dual 20"×18" bass s, and a 14"×3.5" Free Floating snare fitted with Emperor heads. In the , Barker's rig evolved toward more hybrid custom designs, aligning with his shift to Sonor Drums, where he has been an endorsed artist since at least the mid-; these kits emphasize versatility for both and live performances, incorporating modern systems like Optimount for reduced weight and improved sustain. His pedal choices have similarly progressed from A Longboard pedals in the late and early —known for their adjustable drive and power—to the current Czarcie Kopyto endorsement, a Polish-made system praised for precision in high-speed playing. Barker's cymbal setup has consistently featured Paiste models optimized for extreme metal's aggressive dynamics, including stacks of RUDE series crashes and effects like the 18" RUDE for sharp, cutting accents, paired with a signature 24" Dimensions Mega Power Bell Ride for defined bell tones and wash control during rides. These were often custom-ordered in black finishes to match his kits, as seen in his 2003 Pearl ensemble. He has held long-term endorsements with since the 1990s, alongside sticks for their durability in blast-heavy contexts—requiring gear that withstands relentless velocity without compromising response. No signature drum or models bearing his name have been produced, though his artist status with Sonor, , , Czarcie Kopyto, and underscores his influence on equipment selection in the genre.

Discography

Cradle of Filth

Nick Barker served as the drummer for 's debut album The Principle of Evil Made Flesh, released on February 24, 1994, by Cacophonous Records, where he performed drums on all tracks and received co-writing credits for the compositions alongside bandmates , Benjamin Ryan, and . The album, featuring raw elements blended with gothic atmospheres, did not chart in the UK but established the band's early sound through Barker's fast-paced, aggressive drumming that underpinned tracks like "The Black Goddess Rises" and "A Gothic Romance." On the follow-up Dusk... and Her Embrace, released on October 28, 1996, by , Barker handled full drumming duties across all songs, delivering intricate blast beats and dynamic rhythms that enhanced the album's intensity on cuts such as "Funeral in Carpathia" and "Beauty Slept in ." Like its predecessor, the record did not enter the charts, yet Barker's contributions solidified Cradle of Filth's reputation for complex, high-speed percussion in the gothic genre. Barker's final studio effort with the band was , released on May 5, 1998, also by , where he drummed on every track, providing relentless double-kick patterns and fills that drove the concept album's theatrical style, exemplified in "Once Upon a Time in the West" and "The Twisted Nails of Faith." The album marked the band's commercial breakthrough, peaking at number 48 on the , with Barker's drumming playing a key role in amplifying the gothic horror themes and ferocity that defined Cradle of Filth's evolving sound.

Dimmu Borgir

Nick Barker joined in 1999 following his departure from , bringing his drumming expertise to the band. His tenure marked a pivotal shift, enhancing the group's blend of ferocious rhythms with orchestral grandeur during a period when was gaining prominence in Norway's underground scene. Barker's first major contribution came on the 2001 album Puritanical Euphoric Misanthropia, where he handled all drumming duties, delivering blistering double-bass patterns and intricate fills that underpinned the record's symphonic flourishes. Released via , the album showcased Barker's ability to integrate rapid, aggressive percussion with orchestral elements, such as in tracks like "Architecture of a Deceased ," helping elevate Dimmu Borgir's status as innovators in the landscape by merging raw intensity with cinematic scope. Critics noted his performance as a standout, propelling the band's sound toward broader accessibility while retaining black metal's ferocity. He continued on the 2003 follow-up Death Cult Armageddon, providing full drum recordings that amplified the album's epic scale, including fast-paced sections amid full orchestral arrangements recorded in . Barker's dynamic style—featuring relentless blast beats and precise with choirs and strings—contributed to the record's thematic depth, drawing from apocalyptic motifs and solidifying Dimmu Borgir's influence on the of in . The album's success, including sales exceeding 130,000 in , underscored its role in bridging niche with wider metal audiences. Barker departed the band in early 2005. The re-recording Stormblåst MMV (2005), a refreshed version of their 1996 album, features drumming by of .

Brujeria

Nick Barker first contributed to Brujeria as a session on the band's third studio album, , released on November 7, 2000, via . His performances on the record aligned with Brujeria's fusion of and , delivering aggressive, high-speed blasts that supported the album's shift toward a more refined yet brutal sound compared to prior works. Thematically, tied into Brujeria's satirical exploration of narco-culture, , and Mexican stereotypes, using exaggerated personas to critique societal issues through aggression. Barker joined Brujeria as a full-time member under the alias Hongo Jr. from 2003 to 2005, contributing drums during a period when the band released compilations like The Mexecutioner! - The Best of Brujeria! in 2003, which recapped their grind/death hybrid style with satirical lyrics on drug trafficking and border politics. After a hiatus, he rejoined in 2016 and has remained as of 2025, solidifying his role in the band's evolving sound. This era emphasized the grindcore-death metal fusion, with Barker's technical prowess driving the rhythmic intensity behind themes of immigration, violence, and anti-authoritarian satire. Barker's most prominent full-membership contribution came on Brujeria's fourth studio album, Pocho Aztlan, released on September 16, 2016, via Records. As the primary drummer, he provided the explosive, precise beats that underpinned the record's blend of ferocity and grooves, while the album's content satirized U.S.- border tensions, narco-mythology, and cultural identity through provocative, humorous narratives. This release marked Brujeria's return after 16 years, with Barker's involvement enhancing the band's reputation for merging with sharp . Barker continued drumming on Brujeria's fifth studio album, Esto es Brujeria, released on September 15, 2023, via Records. His aggressive and high-speed percussion supported the album's continuation of the band's and style, featuring satirical lyrics addressing , corruption, and cultural clashes, with tracks like "Bruja Encabronada" showcasing his precise blast beats and dynamic rhythms.)

Shining

In 2022, Nick Barker joined the band as their , marking a brief but impactful tenure that lasted until 2023. During this period, Barker contributed to the band's self-titled eleventh studio , Shining, released on September 15, 2023, via , where he received full drumming credits across all tracks. Barker's performance on the album enhanced Shining's signature depressive sound, characterized by its dark, aggressive, and emotionally intense style that explores themes of despair and . His precise and relentless drumming, including complex time changes and furious patterns, supported the album's blend of modern influences with thrash-like extremity, contributing to its reputation as a complex and emotionally charged release. The record was praised for its oppressive atmosphere, with Barker's rhythms providing a solid foundation for frontman Niklas Kvarforth's vision of human suffering and pain.

Old Man's Child

Nick Barker joined the Norwegian band Old Man's Child in 2002 as their drummer, contributing to their evolving sound characterized by intricate guitar work, atmospheric keyboards, and aggressive rhythms typical of the second wave of from . His primary recording contribution came on the band's fifth studio album, In Defiance of Existence (2003, ), where he handled all drum duties, delivering rapid double bass drumming, complex fills, and relentless blast beats that supported the album's themes of defiance and cosmic horror. Barker's performance was praised for adding groove and technical precision, qualities (the band's founder) highlighted as essential for balancing speed with musicality in . Barker remained with Old Man's Child through 2003, aligning with his broader expansions into Scandinavian metal scenes during the 2000s.

Lock Up

Barker joined the supergroup Lock Up in 1998 as its founding , contributing to the band's high-speed, aggressive sound rooted in the UK scene. His role emphasized relentless blast beats and precise, high-tempo rhythms that defined the genre's intensity, often employing a stiffened-arm "lock up" technique to achieve lightning-fast execution without sacrificing control. The band's debut album, Pleasures Pave Sewers, released in 1999 by Nuclear Blast Records, showcased Barker's drumming on 13 tracks of raw , including standout cuts like "After Life in Purgatory" and "Reign of Ruin," where his rapid double-bass patterns and fills propelled the short, explosive songs averaging under three minutes each. This recording highlighted his ability to maintain clarity amid chaotic tempos exceeding 200 , establishing Lock Up's reputation for unyielding ferocity. In 2002, Lock Up followed with Hate Breeds Suffering, also on , where Barker's contributions intensified the assault across 16 tracks, such as "Merciless Grindover" and the title song, blending grooves with hyper-aggressive blasts that underscored his technical reputation in extreme music. Critics noted his drumming as a driving force, delivering machine-gun precision that amplified the album's themes of societal through unrelenting speed and power. Barker's Lock Up tenure extended into the mid-2000s with the live album Play Fast or Die: Live in Japan (2005), capturing performances from the band's tour and featuring his dynamic, crowd-energizing style on reinterpreted tracks from prior releases. This effort solidified his legacy, demonstrating endurance in live settings with non-stop intensity. Barker returned for the band's third studio album, Necropolis Transparent, released in 2011 by Records, where he provided full drumming duties across 13 tracks of brutal , maintaining the high-tempo blasts and precise rhythms on songs like "Bloodsuckers" and "," furthering Lock Up's reputation for unrelenting aggression. His final studio contribution was on Demonization (2017, Listenable Records), delivering intense percussion on 17 tracks, including "Hell's Bite" and "Reinfection Process," blending grindcore speed with death metal elements and showcasing his enduring technical skill before departing the band in 2020.

Ancient

Nick Barker joined the Norwegian pagan black metal band Ancient as their drummer in 2009, providing a stable rhythmic foundation during a period of reunion and creative resurgence for the group. His involvement lasted until 2017, during which he contributed to live performances and studio recordings that revitalized the band's presence in the extreme metal scene. Barker's most notable contribution came on Ancient's fifth studio album, Back to the Land of the Dead, released on September 16, , via Soulseller Records. As the band's first full-length release in 12 years since Night Visit (2004), the album showcased Barker's technical prowess through fast-paced, aggressive drumming that complemented Ancient's melodic and atmospheric style, blending ferocity with pagan and folk-inspired elements. Tracks like "Back to the Land of the Dead" and "Occlude" highlighted his precise blast beats and dynamic fills, adding intensity to the production handled by the band itself in just seven days of recording. The effort received for its return to the band's roots, with Barker's veteran experience—drawn from prior stints in bands like and —elevating the album's energy and cohesion.

Other bands and projects

Barker contributed drums to the death metal band Monolith's early releases, including the 7" single Sleep with the Dead in 1992 on Cacophonous Records and the full-length album Tales of the Macabre in 1993 on Vinyl Solution, where he handled all drum duties at age 19. In 2007, he recorded drums for the self-released EP In:Through:Out by the blackened death metal project Winter's Thrall, providing the full percussion for its three tracks. Barker served as a session drummer for the Venezuelan band Noctis Imperium on their 2008 debut album Glorification of Evil: The Age of the Golden Down, released via Ariah Records, where he tracked drums in , , contributing to its symphonic and atmospheric elements. For the Galician death metal band Obskkvlt, Barker recorded drums in 2017 at Sta. Cruz Studios for their self-released debut album Blackarhats in 2019, delivering intense, technical performances mixed at Dug Out Studio in . Barker has been the permanent for since 2010, an all-star supergroup, including on their 2013 debut album Fire on the Mountain via , where he provided driving rhythms alongside members from and Aura Noir. He joined Liquid Graveyard as in 2014, contributing to their 2016 album By Nature So Perverse on Pulverised Records, a project blending death and . In 2021, Barker formed and drummed for the UK hardcore band Borstal on their debut EP At Her Majesty's Pleasure, released via 4Family Records and recorded at Monolith Studios, featuring fast-paced, aggressive percussion.

Live and session work

Major tours and performances

Barker served as Cradle of Filth's drummer from 1993 to 1999, contributing to the band's breakthrough live shows across Europe and North America. A key early outing was the 1994 European tour alongside Anathema and At the Gates, which included performances in cities like Stuttgart, Germany, and marked the group's rising presence in the extreme metal circuit. In 1998, he participated in Cradle of Filth's inaugural North American tour supporting Cruelty and the Beast, featuring dates in venues such as Tramps in New York City and helping expand the band's international fanbase. Joining in 1999, Barker drummed for the band until early 2004, powering extensive world tours that promoted albums including (2001) and Death Cult Armageddon (2003). These campaigns encompassed headlining runs in Europe and multiple North American legs, where his precise, high-speed playing enhanced the outfit's elaborate stage productions. Although performed at Ozzfest 2004, Barker departed beforehand due to scheduling conflicts with the festival. Since 2016, Barker has been the drummer for act Brujeria, participating in a series of appearances and tours that injected renewed intensity into their satirical sets. Highlights included their performance at in 2017, delivering tracks like "Colas de Rata" to large crowds, and a 2022 U.S. spring tour co-headlining with , which spanned over a dozen dates from to . Barker took on touring duties for black metal band in 2022 and 2023, supporting their dark, aggressive live repertoire during dates. His as a temporary member aligned with the group's rotational lineup approach, emphasizing relentless percussion that complemented their depressive sound. Barker's rapid blast beats and dynamic fills proved particularly suited to the high-energy demands of these stage environments.

Guest and session appearances

Barker has frequently contributed as a guest live to prominent acts, filling temporary roles on tours and at festivals due to his established technical prowess in the scene. These appearances span , death, and , often involving intense, short-term commitments rather than full band memberships. In 1999, he performed live drums for on their North American "Kings of Terror" tour with and Witchery, powering through progressive tracks like "The Dawn of the End" at venues such as the in . Barker handled live drumming duties for in 2004, supporting the black/death metal duo during UK performances that emphasized their abrasive, high-speed style. For , he served as live drummer in 2004, including European dates where his blasts underpinned the band's sets alongside vocalist . From 2005 to 2011, Barker was Benediction's touring drummer, appearing at events like the Eisenwahn Festival and delivering anthems such as "Devil Days" across multiple European runs. In 2007, he filled in on live drums for during select shows, aiding the thrash legends amid personnel shifts. Barker drummed for God Seed in 2007 and 2008, including their 2008 headline set—later released as Live at Wacken—where he backed and on black metal classics like "Procreating Satan." He supported on their 2007–2008 European tour, performing with on vocals at stops like , emphasizing the band's raw aggression. During 2009, Barker played live drums for at in the UK, including an cover, and for on tour dates, contributing to their performances before departing mid-year. That same year, he joined for their European tour, substituting for on dates including ’s Academy, where he drove thrash staples like "Piranha" and "A Lesson in Violence." In 2010, Barker performed live drums for Criminal in , , opening for Metallica in a landmark thrash show. From 2014 to 2015, he served as Possessed's live , including appearances like their set, where he unleashed ferocious rhythms on tracks such as "" from Beyond the Gates. Barker rounded out his guest work with at XIV on May 28, 2016, filling in for Glenn Evans and debuting a new song in the band's reunion set. In 2024, Barker served as live drummer for on select dates of their and tour supporting Brujeria, marking a limited return to performing amid health challenges.

Health challenges

Diagnosis and treatment

In July 2023, Nick Barker's family publicly announced his diagnosis of following multiple hospitalizations in , where declining function was first detected during routine medical visits. The condition was attributed to a combination of underlying health issues exacerbated by the physical and mental toll of long-term touring and career demands in , with Barker noting that resuming tours post-COVID led to him "starting to get sick" and requiring hospital stays. Initial symptoms included recurrent illnesses and fatigue severe enough to prompt emergency care, including an episode of kidney stones in July that necessitated hospitalization. By early 2023, Barker's function had deteriorated to the point of requiring , which he began in January of that year. The treatment involves three sessions per week, each lasting four hours, conducted at a facility in where he resides; this regimen has significantly structured his daily life, with sessions typically starting early in the morning and leaving him fatigued afterward. The condition progressed to stage five chronic renal failure—also known as end-stage renal disease—by 2025, marking complete shutdown and dependence on or transplantation for survival. As of October 2025, Barker has been approved for the kidney transplant waitlist in , though he must first lose 20-30 pounds to meet eligibility criteria; the timing of a donor match remains uncertain, potentially occurring soon or extending into the following year. To cover escalating medical expenses, including , medications, and potential transplant —which can exceed tens of thousands of dollars given his inability to work—a campaign was launched by his family on July 26, 2023, with an initial goal of £25,000 to support comprehensive care. As of November 2025, the campaign has raised over £65,000 toward an updated goal of £100,000.

Impact on career and community support

Barker's diagnosis of stage five chronic in early 2023 necessitated significant adjustments to his professional life, including a pause in international touring to accommodate his thrice-weekly, four-hour sessions. He departed in 2023, where he had served as since 2022, amid these health challenges. He has shifted his focus to less demanding, localized commitments in the UK, such as work with Lock Up and . The community rallied around Barker following the public revelation of his condition, with peers organizing support initiatives to alleviate financial burdens from medical costs. A campaign launched in July 2023 received contributions from fans and figures like Cattle Decapitation's Travis Ryan, who urged followers to support one of the genre's "greatest drummers." Alumni from , where Barker had been a foundational member, also voiced solidarity, highlighting his enduring influence and prompting broader industry fundraisers that underscored the tight-knit nature of the scene. In an October 2025 on the Pod Scum podcast, Barker expressed resilience amid his ongoing battle, noting his approval for a transplant list and optimism for resuming activities post-recovery, while emphasizing the emotional uplift from community backing. He reflected on adapting by prioritizing studio work and regional performances over extensive travel, signaling a phased return to selective projects once his health stabilizes.