Lou Jacobi
Lou Jacobi (December 28, 1913 – October 23, 2009) was a Canadian-American character actor renowned for his versatile performances in theater, film, and television across a seven-decade career, often portraying avuncular Jewish characters with sharp comic timing and dramatic depth.[1][2] Born Louis Harold Jacobovitch in Toronto's Jewish community, he debuted on stage as a child violinist in a 1924 Yiddish theater production and honed his skills as a stand-up comic at Canadian resorts before gaining international recognition.[1][2] Jacobi's work spanned Broadway hits, Hollywood films, and television series, earning him induction into Canada's Walk of Fame in 1999 and the inaugural John Labatt Entertainment Group Canadian Classic Award.[1] Jacobi's early career took root in Toronto's vibrant Yiddish theater scene, where he performed from age 11, and expanded in the 1940s through revues like Spring Thaw (1949).[1][2] Relocating to London in 1952, he appeared in West End productions such as Pal Joey and Guys and Dolls, and made his film debut in Is Your Honeymoon Really Necessary? (1953).[2][1] His Broadway breakthrough came in 1955 as Hans van Daan in The Diary of Anne Frank, a role he reprised in the 1959 film adaptation, followed by acclaimed turns in Come Blow Your Horn (1961) and Woody Allen's Don't Drink the Water (1966).[1][3] Jacobi appeared in more than 70 films and television productions, including Billy Wilder's Irma la Douce (1963), Woody Allen's Everything You Always Wanted to Know About Sex (1972), and Barry Levinson's Avalon (1990), often stealing scenes as exasperated everymen.[1][2] On television, he guest-starred in classics like The Dick Van Dyke Show, The Dean Martin Show, and Barney Miller, while also voicing commercials that won him a Clio Award.[1][3] Married to Ruth Ludwin from 1957 until her death in 2004, Jacobi resided in New York City at the time of his passing from natural causes at age 95.[2][3]Early Life
Family Background and Childhood
Louis Harold Jacobovitch, known professionally as Lou Jacobi, was born on December 28, 1913, in Toronto, Ontario, Canada, to Jewish immigrant parents Joseph and Fay Jacobovitch.[1][4] His family had roots in Eastern European Jewish heritage, reflecting the broader wave of immigration to Canada in the early 20th century.[1] Jacobi grew up in Toronto's Kensington Market neighborhood, specifically on Brunswick Avenue, a vibrant area that became a hub for Eastern European Jewish immigrants fleeing pogroms and seeking economic opportunities.[1][5] This working-class enclave, known as the "Jewish Market" by the 1920s, was characterized by bustling street commerce, Yiddish theaters, and close-knit immigrant communities where families like the Jacobovitches navigated cultural adaptation amid modest means.[6][7] The neighborhood's economic context emphasized resilience, with many residents, including Jacobi's parents, engaged in small-scale trades or garment work to support their households.[5] He was raised alongside siblings, including his brother Rabbi Avrom Jacobovitch and sister Rae Gold, both of whom survived into adulthood and remained in Toronto.[1][3] During his childhood, Jacobi developed an early interest in music, particularly the violin, which he played and which influenced his initial forays into performance.[8][2] This passion emerged within the rich cultural milieu of his family's Jewish traditions, fostering a foundation for his later artistic pursuits.[2]Entry into Performing Arts
Lou Jacobi made his stage debut at the age of 11 in 1924, portraying a violin prodigy in the Yiddish-language production of The Rabbi and the Priest at a Toronto theater.[1][4][2] This early role immersed him in Toronto's vibrant Yiddish theater scene, where he drew upon the expressive traditions and cultural rhythms of Jewish performance that shaped his formative years in the city's Jewish community.[1][2] Throughout his youth and young adulthood, Jacobi honed his skills through practical experience in local Toronto productions, without formal acting education.[1][4] He took on various roles in Jewish community theaters, eventually serving as drama director for the Toronto Young Men's Hebrew Association (YMHA), where he directed plays and nurtured emerging talent.[4] By the 1940s, he expanded into stand-up comedy, performing at Muskoka holiday resorts—a popular destination for Jewish vacationers—and at social events like weddings and bachelor parties, often acting as a tummler to entertain crowds with improvisational humor rooted in Yiddish traditions.[1][2][4] These early endeavors in Canada's Jewish performing arts scene built Jacobi's versatile comic and dramatic abilities, setting the stage for his professional ambitions.[1] His work in variety entertainment, including contributions to the 1949 satirical revue Spring Thaw, showcased his talent and opened doors to broader opportunities beyond local stages.[1][2]Career
Stage Performances
Lou Jacobi began his professional stage career in London during the early 1950s, spending three years in the West End where he gained traction through musical productions. He appeared in the British premieres of the Broadway shows Pal Joey (1954) and Guys and Dolls (1955), showcasing his versatility in comedic supporting roles.[9][10] Jacobi made his Broadway debut in 1955 as Mr. Van Daan in The Diary of Anne Frank, a dramatic role that highlighted his ability to portray complex, flawed characters under tension.[11] This performance marked the start of a prolific theater career spanning over two decades, with appearances in 11 Broadway productions that blended comedy and drama.[11] Throughout the 1960s and 1970s, Jacobi excelled in character roles that defined his signature style: an avuncular presence delivered with explosive comedic timing, often infusing ethnic Jewish stereotypes with emotional depth and authenticity.[2][4] After his Broadway debut, Jacobi originated the role of Schlissel in Paddy Chayefsky's supernatural drama The Tenth Man (1959), earning praise for balancing mysticism and everyday pathos. He later replaced the original actor as the exasperated father Mr. Baker in Neil Simon's Come Blow Your Horn (1961), delivering memorable lines like "Aha!" that captured familial frustration with wry humor.[11][2][12] Jacobi's comedic prowess shone in Woody Allen's debut play Don't Drink the Water (1966), where he originated the role of the bumbling American ambassador Walter Hollander, navigating absurd Cold War espionage with flustered energy.[13] Later highlights included Ben Chambers in the family comedy Norman, Is That You? (1970) and a replacement as Al Lewis in The Sunshine Boys (1972), where his timing amplified the show's vaudeville-inspired banter.[11] These roles solidified Jacobi's reputation as a reliable scene-stealer, capable of elevating ensemble dynamics through precise physicality and vocal inflection.[14]Film Roles
Lou Jacobi's film career began in the mid-1950s, transitioning from his established stage work to cinema with British productions that showcased his talent for portraying nuanced ethnic characters. His debut feature was Is Your Honeymoon Really Necessary? (1953), in which he played Captain Noakes. He followed with an early role as Blackie Isaacs, an East End wrestling promoter whose gruff yet endearing demeanor highlighted Jacobi's ability to blend humor with pathos in working-class settings, in A Kid for Two Farthings (1955), directed by Carol Reed. This role built on his theatrical background to bring authenticity to immigrant and Jewish figures often central to post-war British narratives.[1] Throughout the 1960s, Jacobi solidified his reputation as a versatile character actor in both comedies and dramas, frequently embodying exasperated or wise patriarchs with a distinctive Yiddish-inflected delivery. A standout performance came in Billy Wilder's Irma la Douce (1963), where he portrayed Moustache, the philosophical pimp who serves as a mentor to the protagonist, infusing the film's whimsical Parisian tale with wry commentary on love and survival. His role earned praise for its subtle comic timing, contrasting the leads' antics while providing emotional grounding. Later in the decade, he appeared in Penelope (1966) as Ducky, a safecracker in the Natalie Wood vehicle, further demonstrating his skill in lighthearted caper films. By the 1970s, Jacobi's American film work expanded, including the Woody Allen comedy Everything You Always Wanted to Know About Sex But Were Afraid to Ask (1972), where he played Sam, a patient in a surreal therapy segment, capturing the film's absurd humor through his bemused reactions. These roles exemplified his niche as a reliable supporting player in ensemble casts, often stealing scenes with minimal dialogue. In the 1980s and early 1990s, Jacobi's film appearances shifted toward memorable cameos in high-profile American productions, evolving from substantial supporting parts to poignant ethnic elders that reflected his stage-honed depth. In Steve Gordon's Arthur (1981), he portrayed the plant store owner, a quirky Brooklynite whose brief interaction with the affluent protagonist underscores themes of class and eccentricity.[15] This was followed by Uncle Morty in Richard Benjamin's My Favorite Year (1982), a nostalgic comedy where Jacobi's warm, nagging relative added heartfelt levity to the backstage Hollywood story. His later films embraced dramatic nuance, such as in Barry Levinson's Avalon (1990), playing Gabriel Krichinsky, one of four Russian-Jewish immigrant brothers navigating early 20th-century Baltimore; the role drew on Jacobi's heritage for an authentic portrayal of familial resilience and cultural adaptation. Jacobi's final feature was Fred Schepisi's I.Q. (1994), in which he appeared as Kurt Gödel, the eccentric mathematician among a group of Princeton intellectuals meddling in romance, providing subtle intellectual humor in his swan song. Spanning four decades from 1950s British imports to 1990s Hollywood fare, Jacobi contributed to over 70 screen projects overall, though his feature film output focused on around 35 titles where he excelled as a character actor in comedies and dramas.[1] His portrayals typically featured beleaguered yet insightful figures—often Jewish or immigrant archetypes—whose exasperated wisdom offered comic relief or quiet profundity, influencing ensemble dynamics without dominating the narrative.[4] This consistent archetype, rooted in his Toronto upbringing and Broadway roots, made Jacobi a go-to for directors seeking authentic, relatable everymen in diverse cinematic landscapes.[2]Television and Other Media
Lou Jacobi made significant contributions to television through a series of guest appearances and short-lived series that showcased his comedic talents. In 1976, he starred as the lead character, Ivan Petrovsky, a Soviet defector working as a headwaiter in New York, in the CBS sitcom Ivan the Terrible, which aired for five episodes.[16] His portrayal highlighted his ability to blend ethnic humor with heartfelt immigrant struggles in a Cold War-era setting.[17] Throughout his career, Jacobi appeared in more than 70 films and television series, with dozens of episodic roles emphasizing his explosive comedic timing in sitcoms and variety shows.[10] Notable guest spots included playing Harry Tannenbaum in Barney Miller (1975), dual roles as Max Steinberg and Bert Lipson in Sanford and Son (1975), the eccentric neighbor in The Dick Van Dyke Show episode "Young Man with a Shoehorn" (1965), Spivakofski in King of Kensington (1979), and the elderly lawyer in L.A. Law episode "Leave It to Geezer" (1989).[18] He also made recurring sketches as a performer on The Dean Martin Show from 1971 to 1973 and appeared in five episodes of Love, American Style.[19] Jacobi's hefty, mustachioed presence and bombastic delivery made him a memorable foil in these short-form formats, often portraying exasperated everymen or quirky authority figures.[20] Beyond scripted television, Jacobi extended his comedic reach into advertising and recordings. He earned a Clio Award for his performances in a series of Hertz rental car commercials during the 1970s, where his animated exasperation over car troubles became iconic.[20] In 1966, he released the parody album Al Tijuana and His Jewish Brass on Capitol Records, a humorous spoof of Herb Alpert and the Tijuana Brass that fused Yiddish influences with Latin rhythms, featuring tracks like a klezmer-inflected "Downtown."[21] Early in his career, Jacobi performed on CBC radio in Toronto during the 1940s, honing his stand-up and character skills in Yiddish programming before transitioning to visual media.[10]Recognition and Awards
Theatrical and Film Honors
Lou Jacobi received significant critical acclaim for his stage performances, particularly in Broadway productions where he excelled in portraying complex Jewish characters blending humor and pathos. His breakthrough role as Hans van Daan in the 1955 Broadway production of The Diary of Anne Frank earned high praise for capturing the character's emotional depth amid the play's dramatic intensity.[4] He reprised the role in the 1959 film adaptation, where New York Times film critic Bosley Crowther described him as "irksomely sluggish and pathetically lax as the weakling Van Daan," noting it as one of the standout elements in an otherwise uneven cast and commending his nuanced delivery that balanced vulnerability and irritability.[4] Earlier, during his time in London's West End from 1952 to 1956, Jacobi appeared in musicals such as Pal Joey and Guys and Dolls, roles that showcased his comedic timing and helped establish his international reputation, though specific awards eluded him.[2] In other Broadway outings, Jacobi continued to garner favorable reviews for his character work. As the anxious father in Neil Simon's Come Blow Your Horn (1961), he was lauded for his comic relish in embodying a self-made Jewish immigrant's exasperation.[2] Similarly, in Woody Allen's debut play Don't Drink the Water (1966), Jacobi originated the role of the bumbling New Jersey travel agent Walter Hollander, with critics appreciating his professional handling of the farce's rapid-fire gags and his chemistry with co-stars like Kay Medford.[4] His dramatic turn in Paddy Chayefsky's The Tenth Man (1959) further demonstrated his versatility, earning notice for infusing supernatural elements with authentic emotional weight. While Jacobi never secured a Tony Award nomination, his consistent critical recognition underscored his mastery of supporting roles that elevated both comedies and dramas.[4] Jacobi's film career similarly drew praise for his scene-stealing supporting performances, often in comic roles that highlighted his expressive face and timing. In Billy Wilder's Irma la Douce (1963), as the philosophical bartender Moustache, Jacobi delivered what Variety called a "whale of a comedy portrayal," providing wry narration and counsel that anchored the film's whimsical tone alongside stars Jack Lemmon and Shirley MacLaine.[22] His role as the florist in Steve Gordon's Arthur (1981) was celebrated for adding heartfelt warmth to the comedy, with Jacobi's deadpan delivery in scenes opposite Dudley Moore contributing to the film's overall charm and box-office success.[4] Critics often highlighted Jacobi's ability to blend humor with subtle pathos in these films, as seen in his memorable uncle figure in My Favorite Year (1982), where his interactions with Peter O'Toole amplified the nostalgic comedy.[2] Overall, Jacobi's film honors centered on this critical appreciation for enhancing ensemble dynamics without dominating, solidifying his status as a reliable character actor in Hollywood.[4]Canadian and Industry Accolades
In recognition of his extensive contributions to the performing arts, Lou Jacobi was inducted into Canada's Walk of Fame in 1999, honoring his distinguished career in film, theatre, and television as a Toronto-born talent.[1] His star, embedded in the sidewalk as part of the walk's maple leaf-shaped tributes, is located outside Toronto's Royal Alexandra Theatre in the city's Entertainment District.[1] This induction celebrated Jacobi's journey from Canadian stages to international acclaim, marking him as one of the inaugural honorees in the Arts & Entertainment category alongside figures like Mary Pickford.[23] Jacobi also became the first recipient of the John Labatt Entertainment Group Canadian Classic Award, presented for his significant impact on Canadian cinema over a career spanning more than seven decades.[1] This lifetime achievement honor underscored his role in bridging Canadian theatre traditions with Hollywood productions, highlighting his versatility as a character actor in over 70 film and television projects and numerous stage roles.[1] Beyond performance accolades, Jacobi earned industry recognition for his commercial work, winning at least one Clio Award for his portrayal in a series of Hertz rental car advertisements during the 1970s and 1980s.[1] These spots, known for their humorous depiction of everyday frustrations with car rentals, exemplified his knack for blending comedic timing with relatable everyman characters, contributing to the campaign's success and earning him acclaim in the advertising sector.[1]Personal Life
Marriage and Family
Lou Jacobi married Ruth Ludwin on July 15, 1957, in a union that endured for nearly 47 years until her death on May 12, 2004.[24]Their long-term partnership was marked by mutual support, with Ludwin, who had a background in theater from her college studies, accompanying Jacobi through his professional endeavors in stage, film, and television.[25] The couple had no children, focusing instead on their close-knit family relationships. Jacobi remained particularly bonded with his siblings, including his brother Rabbi Avrom Jacobovitch and sister Rae Gold, both of whom resided in Toronto and outlived him.[3][4] Jacobi's family-oriented persona was evident in his self-description as possessing "the look of everybody's favourite Uncle Max," a reflection of his warm, avuncular demeanor that endeared him to audiences and mirrored his personal values.[10][2]
Later Years and Death
Following his final film role as the logician Kurt Gödel in I.Q. (1994), Jacobi retired from acting.[4][1] He made limited public appearances in his later years, including a 1999 interview during the dedication of his star on Canada's Walk of Fame.[4] Jacobi had been a longtime resident of New York City since achieving success on Broadway in the 1950s.[2] Jacobi died of natural causes on October 23, 2009, at his home in Manhattan, New York, at the age of 95.[4][3][2]Legacy
Cultural Influence
Lou Jacobi's distinctive acting style, characterized by an explosive delivery and ethnic comedic flair, significantly shaped the portrayal of supporting characters in mid-20th-century Hollywood and theater. Drawing from his roots in Toronto's Jewish community, Jacobi honed a persona as the quintessential avuncular uncle—portly, mustachioed, and infused with wry humor—that became a staple for comic ethnic roles, often blending physical comedy with subtle emotional depth.[2] His performances, such as the exasperated father in Neil Simon's Come Blow Your Horn (1961), exemplified this approach, influencing subsequent generations of character actors who adopted similar bombastic yet heartfelt interpretations of immigrant or urban archetypes in films and television.[10] Jacobi's vocal style, marked by a gravelly, Yiddish-inflected timbre reminiscent of vaudeville traditions, left a lasting mark on animation and voice acting. Notably, voice artist Billy West drew direct inspiration from Jacobi's delivery when creating the character of Dr. John A. Zoidberg for the animated series Futurama (1999–2013), combining it with elements from fellow Yiddish theater performer George Jessel to craft the lobster-like doctor's neurotic, wheezy exclamations.[26] This adaptation highlighted Jacobi's enduring appeal as a model for exaggerated, culturally specific comedic voices in modern media. Throughout his seven-decade career, Jacobi advanced Jewish representation in entertainment by bridging Yiddish theater traditions with mainstream American narratives. Beginning as a child performer in Toronto's Yiddish productions, such as The Rabbi and the Priest (1924), he later brought authentic Jewish intonations and mannerisms to Broadway hits like The Diary of Anne Frank (1955) and films including Woody Allen's Everything You Always Wanted to Know About Sex (1972).[10] His work helped normalize multifaceted Jewish characters—comic, dramatic, and familial—easing their integration into broader cultural depictions beyond stereotypes.[2]Posthumous Recognition
Following his death on October 23, 2009, Lou Jacobi was honored through extensive obituary coverage that celebrated his extensive career. The New York Times published a detailed tribute emphasizing his 70-year span in entertainment, from a 1924 stage debut in Toronto to his final film role in 1994, and highlighting his versatility in both comedic and dramatic performances across Broadway, film, and television.[4] Similarly, The Guardian noted his distinctive "twinkly-eyed" persona and enduring appeal as a character actor who embodied "everybody's favourite Uncle Max," reflecting on his contributions to theater over decades.[2] Jacobi's work has since been featured in archival retrospectives focused on Canadian performers and classic comedies. The Canadian Encyclopedia includes a comprehensive entry on his life and roles, updated as recently as 2023, positioning him as a key figure among Jewish Canadian actors in mid-20th-century American media.[10] His appearances in films like Avalon (1990) have been revisited in discussions of ensemble casts in Barry Levinson's oeuvre, underscoring his role as a veteran Jewish character actor.[27] In modern media studies, Jacobi continues to be referenced as an exemplar of the unsung character actor, particularly in analyses of ethnic humor and supporting roles in 1970s–1990s comedies. However, as of 2025, no major documentaries, biopics, or dedicated books on Jewish Canadian performers have centered on his life, though he appears in broader compendia of Canadian arts figures.[10]Filmography
Film
Lou Jacobi appeared in numerous feature films throughout his career, with the following chronological listing of his credits (roles indicated where specified):- 1955: A Kid for Two Farthings as Blackie Isaacs[28]
- 1956: Charley Moon as Theatre Manager[29]
- 1959: The Diary of Anne Frank as Mr. Hans Van Daan[30]
- 1960: Song Without End as Potin[30]
- 1963: Love Is a Ball as Señor Pérez[29]
- 1963: Come Fly with Me as Walter[30]
- 1963: Irma la Douce as Moustache[30]
- 1964: The Beauty Jungle as Mr. Axel[29]
- 1964: The Disorderly Orderly as Father Maestro[30]
- 1966: Penelope as Ducky[28]
- 1966: The Last of the Secret Agents? as Papa Leo[28]
- 1966: The Russians Are Coming, the Russians Are Coming as Leopold St. Gregor[29]
- 1966: Any Wednesday as Mr. Riccio[29]
- 1966: The Busy Body as Mr. Merriwether[29]
- 1969: The April Fools as Ted Gunther[29]
- 1970: Cotton Comes to Harlem as Goodman[28]
- 1971: Little Murders as Judge Stern[28]
- 1971: Who Is Harry Kellerman and Why Is He Saying Those Terrible Things About Me? as Dr. Solomon[29]
- 1972: Everything You Always Wanted to Know About Sex But Were Afraid to Ask as Sam Musgrave[30]
- 1972: Play It Again, Sam as Disciple[29]
- 1972: The Heartbreak Kid as Mr. Cantor[29]
- 1972: Avanti! as Carlo Carlucci[29]
- 1973: From the Mixed-Up Files of Mrs. Basil E. Frankweiler as School Principal[29]
- 1973: The Way We Were as Dr. Short[29]
- 1976: Next Stop, Greenwich Village as Herb[28]
- 1976: The Manchu Eagle Murder Caper Mystery as Big Max[29]
- 1977: Roseland as Mr. Lefkowitz[29]
- 1979: The Magician of Lublin as Wolsky[29]
- 1979: The Jerk as Carl Gottlieb[29]
- 1981: Chu Chu and the Philly Flash as Landlord[29]
- 1981: Arthur as Rodent[28]
- 1981: Zorro, the Gay Blade as Garcia[29]
- 1982: My Favorite Year as Uncle Morty Kronsky[28]
- 1982: The Fan as Theatrical Agent[29]
- 1982: The Last Unicorn as The Cat (voice)](https://www.themoviedb.org/person/23708-lou-jacobi)
- 1984: Isaac Littlefeathers as Abe[29]
- 1984: The Muppets Take Manhattan as Mr. Price the Owner[29]
- 1985: The Boss' Wife as Harry Taphorn[29]
- 1985: Beer as Buzz[29]
- 1986: Tough Guys as Jimmy[29]
- 1987: Amazon Women on the Moon as Murray[28]
- 1987: Three Men and a Baby as Det. Sgt. Melkowitz[29]
- 1988: It Takes Two as J.J.[29]
- 1990: Avalon as Gabriel Krichinsky[28]
- 1991: I Don't Buy Kisses Anymore as Irving Fisher[29]
- 1992: Passed Away as Jack Stangness[29]
- 1994: I.Q. as Kurt Gödel[30]
Television
Lou Jacobi appeared in over 70 television productions across a career spanning five decades, primarily in guest roles and occasional recurring parts on American and Canadian series, often portraying comedic ethnic characters.[30] His early television work included multiple appearances on variety shows such as The Ed Sullivan Show (1948–1971), where he performed sketches as himself.[30] In the 1950s, he guest-starred on anthology series like Rheingold Theatre (1953–1957) as Ben and Milton Cassal.[30] During the 1960s, Jacobi had notable guest spots on sitcoms and dramas, including The Dick Van Dyke Show (1965) as Lou Sorrell in the episode "Young Man with a Shoehorn."[30] He also appeared as Archie on The Trials of O'Brien (1965), Arum Tertunian on The Man from U.N.C.L.E. (1966), and Leo Walinska on That Girl (1969).[30] In the 1970s, Jacobi continued with variety and comedy roles, serving as a sketch performer on The Dean Martin Show (1971–1973).[30] He made guest appearances on Barney Miller (1975) as Harry Tannenbaum in the episode "The Courtesans," and on Sanford and Son (1975) as Max Steinberg and Bert Lipson in "Steinberg and Son."[30] That year, he also featured on the Canadian series King of Kensington.[30] Jacobi had a recurring role as Ivan on the short-lived sitcom Ivan the Terrible (1976), appearing in all five episodes.[30] Other 1970s credits included Love, American Style (1974), The Tony Randall Show (1976), Kaz (1978), and The Paper Chase (1979).[30] The 1980s saw Jacobi in genre-spanning guest roles, such as on Fantasy Island (1980), Enos (1982), Tales from the Darkside (1983) as Mr. Hackles in "Trick or Treat," Finder of Lost Loves (1984), Amen (1986), Sledge Hammer! (1987), and Day by Day (1988).[30] In the 1990s, Jacobi's television appearances became less frequent, with guest roles on series such as Brooklyn Bridge (1992).[30]Theatre
Lou Jacobi began his stage career as a child in Toronto's Yiddish theatre scene, making his debut in 1924 as a violin prodigy in the play The Rabbi and the Priest at a local Toronto theatre.[4] After working as a drama director at the Toronto Y.M.H.A. and as a stand-up comic, he transitioned to professional theatre, eventually making his Broadway debut in 1955. Over the next two decades, Jacobi appeared in ten Broadway productions, showcasing his versatility in dramatic and comedic roles. His stage credits are as follows:| Year | Production | Role | Venue |
|---|---|---|---|
| 1955–1957 | The Diary of Anne Frank | Mr. Van Daan | Cort Theatre |
| 1959–1961 | The Tenth Man | Schlissel | Booth Theatre |
| 1961–1962 | Come Blow Your Horn | Mr. Baker (replacement) | Brooks Atkinson Theatre |
| 1964–1965 | Fade Out – Fade In | Lionel Z. Governor | Mark Hellinger Theatre |
| 1966–1968 | Don't Drink the Water | Walter Hollander | Morosco Theatre |
| 1969 | A Way of Life | Max Krieger | (Closed during previews; no official opening) |
| 1970 | Norman, Is That You? | Ben Chambers | Lyceum Theatre |
| 1971 | Unlikely Heroes | Epstein / Tzuref | Plymouth Theatre |
| 1972–1974 | The Sunshine Boys | Al Lewis (replacement) | Broadhurst Theatre |
| 1978 | Cheaters | Howard | Biltmore Theatre |