• 
  Ralph Nelson

  regizor

• 
  Mickey Rooney

  Army
• 
  Anthony Quinn

  Louis 'Mountain' Rivera
• 
  John Indrisano

  Barfly watching TV
• 
  Julie Harris

  Grace Miller
• 
  Madame Spivy

  Ma Greeny
• 
  Stan Adams

  Perelli
• 
  Michael Conrad

  Ma Greeny's thug

• 
  Lou Gilbert

  Dr. Gilbert
• 
  Stanley Adams

  Perelli
• 
  Jackie Gleason

  Maish Rennick
• 
  Val Avery

  Young fighter's promoter
• 
  Herbie Faye

  Charlie, the Bartender
• 
  Rory Calhoun

  Himself

• 
  Arthur J. Ornitz

  imagine

• 
  Laurence Rosenthal

  departament sunet
• 
  John Boxer

  costume
• 
  Carl Lerner

  montaj
• 
  Richard Smith

  make-up department
• 
  Dick Smith

  make-up department
• 
  David Golden

  production manager
• 
  Jack Dempsey

  Himself
• 
  Muhammad Ali

  Himself
• 
  Dick Vorisek

  sound department
• 
  Jack Fitzstephens

  sound department