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.

Early life
Dillon was born in New Rochelle, New York and was raised in Mamaroneck, New York. He is the son of Mary Ellen, a homemaker, and Paul Dillon, a portrait painter, sales manager, and golf coach at Fordham University. He has a 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 and Jim Raymond, a cartoonist. He is of Irish American descent. He graduated from Mamaroneck High School.