Guillermo Jacubowicz (birthname: Guillermo Leonardo Jacubowicz) is an Argentine actor who specializes in comedy on the big screen and theater, and was first cast in a feature in director/co-writer Fernando Molnar’s comedy-drama, Showroom (2014), co-starring Diego Peretti, Felicitas Kamien, and Brenda Kreizerman, and produced by Magoya Films and Werner Cine. Jacubowicz had a supporting role in the rom-com directed by Juan Taratuto, I Married a Dumbass/Me case con un boludo (2016), starring Adrian Suar (also a producer), Valeria Bertucelli, Gerardo Romano, Norman Briski and Alan Sabbagh, and grossing $10 million for Patagonik Film Group.
Jacubowicz departed from comedy for a supporting role in director/writer Rodrigo Grande’s crime drama, At the End of the Tunnel/Al final del tunel (2016), co-starring Leonardo Sbaraglia, Pablo Echiarri, Clara Lago, Federico Luppi, and grossing over $3 million for Haddock Films and Hernandez y Fernandez Producciones Cinematográficas. Jacubowicz joined another crime drama, this one by director/writer Adrian Caetano, The Lost Brother/El otro hermano (2017), based on Carlos Busqued’s novel, and starring Leonardo Sbaraglia and Daniel Hendler, and produced by Rizoma Films/Oriental Films/Mod Producciones.
Jacubowicz played support in director/co-writer Sebastian Borensztein’s droll small-town Argentine caper, Heroic Losers/La odisea de los giles (2019), starring Ricardo Darin, Luis Brandoni, Veronica Llinas, Daniel Araoz, and Andres Parra, and grossing $7.3 million globally for K&S Films/Kenya Films/Mod Producciones while being Argentina’s official selection to the Oscars’ Best Foreign-Language Film competition.
Jacubowicz was again a supporting actor in one of the most acclaimed recent Argentine films, director/co-writer/producer Santiago Mitre’s historical legal drama, Argentina, 1985 (2021), co-written by leading indie Argentine filmmaker Mariano Llinas, starring Darin (who also produced), Peter Lanzani, Laura Paredes, Alejandra Flechner and Norman Briski, and premiering at the Venice Film Festival before an Amazon Studios theatrical release and an Oscar nomination for Best International Feature Film.
Guillermo Jacubowicz returned to comedy and co-starred in Argentine-born filmmaker Amalia Ulman’s first Argentine film, the comedy Magic Farm (2025), with Joe Apollonio, Chloë Sevigny, Alex Wolff, and Simon Rex, and released and co-produced by Mubi after premiering at the Sundance and Berlin Film Festivals.
Guillermo Jacubowicz was born and raised in Buenos Aires by his parents, including his father, Daniel. Jacubowicz has one sister, Graciela. Jacubowicz attended and graduated from Colegio Nacional Nicolas Avellaneda. Jacubowicz is married to Luciana Cepeda; the couple has two daughters.
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Heritage: Guillermo Jacubowicz’s family origins are in Poland, where his grandparents fled anti-Semitism and emigrated to Argentina.
Company: Jacubowicz is a member of the Buenos Aires theater group, El Gallo Macanudo.
Musician: Guillermo Jacubowicz has a second performance life as an accordion player.
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