The King of Comedy Cast

Robert De Niro portrays Rupert Pupkin, a delusional and obsessive aspiring stand-up comedian who dreams of becoming famous.

Jerry Lewis plays Jerry Langford, a successful but cynical late-night talk show host who becomes the target of Rupert's obsession.

Sandra Bernhard appears as Masha, a fanatical and unstable woman who joins Rupert in his pursuit of fame by kidnapping Jerry Langford.

Diahnne Abbott takes on the role of Rita Keane, an employee at the TV network where Jerry Langford works.

Shelley Hack portrays Cathy Long, a woman who briefly dates Rupert Pupkin.

Frederick de Cordova plays Bert Thomas, the director of Jerry Langford's talk show.

Kim Chan appears as Jonno, a waiter who befriends Rupert Pupkin.

Ed Herlihy makes a cameo appearance as Himself, a well-known television announcer.

Lou Brown plays the Band Leader in Jerry Langford's talk show.

Margo Winkler appears as the Receptionist at the TV network where Jerry Langford works.

Ralph Monaco portrays Raymond Wirtz, a character associated with Jerry Langford's show.

Catherine Scorsese provides the voice for Rupert's Mom in the film.