Kevin Brady Dillon (born August 19, 1965) is an American actor. He is best known for portraying Johnny "Drama" Chase on the HBO comedy series Entourage, Bunny in the war film Platoon, and John Densmore in the musical biopic The Doors. He was nominated for three Primetime Emmy Awards and a Golden Globe Award for his performance on Entourage.
Dillon was born in New Rochelle, New York, the son of Mary Ellen, a homemaker, and Paul Dillon, a portrait painter, sales manager, and golf coach at Fordham University. He has one sister and four brothers, one of whom is actor Matt Dillon. His paternal grandmother was the sister of comic strip artist Alex Raymond, the creator of Flash Gordon. He is of Irish American descent. He graduated from Mamaroneck High School.
Dillon began acting in both television and films in the 1980s. In 1983, Dillon played Arnold Norberry in the television film No Big Deal. His first major role was Ed Rooney in the film Heaven Help Us, directed by Michael Dinner. He received wide attention for his role as the psychopathic soldier Bunny in the 1986 film Platoon. In 1988, he portrayed Brian Flagg in a remake of the 1958 American science fiction film The Blob. It received mixed reviews but was praised for its special effects and has since gained a cult following. Other notable film roles from that period included War Party (1988), No Escape (1994), and The Doors (1991), in which he played drummer John Densmore.