Cameos
- Scorsese has a cameo as "Man in Van". He later appears as the Jerry Langford show director, assuring Tony Randall that his cue cards are funny.
- Scorsese's mother plays Pupkin's (unseen) mother.
- Real-life film and television producers Edgar Scherick and Frederick de Cordova have cameo roles as a network president and producer of the Langford show, respectively.
- A gang of punks is seen on a street corner in the film. Billed in the credits as "Street Scum," they are played by Mick Jones, Joe Strummer, and Paul Simonon of The Clash, actress-singer Ellen Foley ("Paradise by the Dashboard Light," Night Court), Don Letts, Kosmo Vinyl, and singer Pearl Harbor.
- Tony Randall as emergency guest host of the Jerry Langford Show.
- Victor Borge and Dr. Joyce Brothers as guests on the Jerry Langford Show.
- Lou Brown and Ed Herlihy as band leader and announcer, respectively, of the Jerry Langford Show.
- Scorsese's father, Charles Scorsese, plays one of the men at the bar where Pupkin is watching his own performance on TV.
Read more about this topic: The King Of Comedy (1983 film)