Julian Acosta was born and raised in Puerto Rico. He went to school in the Antilles School System in Fort Buchanan in Guaynabo. He attended High School in El Paso Texas where his father, a U.S. Marshall, was transferred. Julian started acting at North Harris College in Houston, TX under Sherri Ryan White and went on to earn a BFA in Theater at Florida International University in Miami and his MFA in Acting at RUTGERS University where he studied with William Esper and Maggie Flanigan.
Julian got his start in New York where he was quickly cast in Denis Leary's heralded, but short-lived comedy series "The Job" on ABC. Since then Julian has Recurred with Starring roles on "Strong Medicine" on Lifetime Television and as the lovable eccentric Adam Proteau on "Dirt" on F/X. He has Guest Starred on "The West Wing", "Entourage", "The George Lopez Show", "Law & Order", "Second Time Around", "KingPin", "Scrubs", "The Unit", "The Mentalist", "Castle" and "NCIS: Naval Criminal Investigative Service". Julian can also be seen in the films "Bound By Lies", with Stephen Baldwin and Kristy Swanson, "True Love" directed by Sundance Film Festival Grand Jury Prize Nominee Henry Barrial and SEED. Julian is a member of LAByrinth Theater Company the Off-Broadway Theater Company in residence at the Public Theater in New York City. Julian last appeared along with fellow company members Phillip Seymour Hoffman, John Ortiz and Liza Colon-Zayas in the internationally acclaimed production of "Othello" directed by Peter Sellars. Julian's other stage credits include "Penalties and Interest" by Rebecca Cohen and "Massacre (Sing To Your Children) by Oscar nominated Playwright and Screen Writer Jose Rivera both at he Public Theater in New York, "Piano" by Anna Deveare Smith, "Lucy and The Conquest" by Cusi Cram at the Williamstown Theater Festival, "Anna In The Tropics" by Nilo Cruz and "Lover's and Executioners" by John Strand both at South Coast Repertory Theater for which Julian was nominated for a Los Angeles Critic's Circle Award.