cast
- Robert De Niro
- Rupert Pupkin
- Jerry Lewis
- Jerry Langford
- Diahnne Abbott
- Rita
- Sandra Bernhard
- Marsha
- Shelley Hack
- Cathy
- Tony Randall
- Himself
- Ed Herlihy
- Himself
- Lou Brown
- Band Leader
- Margo Winkler
- Receptionist
- Bill Minkin
- McCabe
- Catherine Scorsese
- Rupert's Mom
- Charles Low
- Man in Chinese Restaurant
- Charles Scorsese
- Man at Bar
- Diane Rachell
- Mrs. McCabe
- Doc Lawless
- Chauffeur
- Edgar J. Scherick
- Wilson Crockett
- Ellen Foley
- Street Scum
- Frederick de Cordova
- Himself
- George Kapp
- Mystery Guest
- Jeff David
- Announcer
- Joe Strummer
- Street Scum
- Joyce Brothers
- Herself
- Katherine Wallach
- Autograph Seeker
- Kim Chan
- Jonno
- Leslie Levinson
- Roberta Posner
- Liza Minnelli
- Herself
- Loretta Tupper
- Stage Door Fan
- Mardik Martin
- Men at Bar
- Marta Heflin
- Young Girl
- Martin Scorsese
- TV director
- Marvin Scott
- Newsman
- Matt Russo
- Cabbie
- Mick Jones
- Street Scum
- Peter Fain
- Plainclothesman
- Ralph Monaco
- Raymond Wirtz
- Ray Dittrich
- Giardello
- Richard Dioguardi
- Capt. Burk
- Scotty Bloch
- Crockett's Secretary
- Sel Vitella
- Man at Telephone
- Thelma Lee
- Woman in Phone Booth
- Tony Devon
- Plainclothesman
- Victor Borge
- Himself
- Whitey Ryan
- Stage Door Guard
crew
- Martin Scorsese
- Director
- Arnon Milchan
- Producer
- Paul D. Zimmerman
- Screenwriter
- Fred Schuler
- Cinematographer
- Robbie Robertson
- Composer (Music Score), Musical Direction/Supervision
- Thelma Schoonmaker
- Editor
- Boris Leven
- Production Designer
- Edward Pisoni
- Art Director
- Lawrence Miller
- Art Director
- Robert F. Colesberry
- Associate Producer
- Robert Greenhut
- Executive Producer
- Daniel Robert
- Set Designer
- George DeTitta, Sr.
- Set Decorator
- Richard Bruno
- Costume Designer
- Les Lazarowitz
- Sound/Sound Designer
- Scott Maitland
- First Assistant Director
- Cis Corman
- Casting
- Frank Warner
- Supervising Sound Editor
- Gil Rossellini
- Production Assistant

