• 
  Joseph Pevney

  regizor

• 
  Jerry Lewis

  Jerome F. 'Jerry' Hotchkiss
• 
  Dean Martin

  Peter 'Pete' Nelson
• 
  George E. Stone

  Little boy's father
• 
  Howard Joslin

  Fourth Soldier
• 
  Sig Ruman

  Colonel Fritz Schlitz, Lion Tamer
• 
  Philip Van Zandt

  Shell Game Operator
• 
  Mark Hanna

  Third Soldier

• 
  Wallace Ford

  Sam Morley
• 
  Sayre Dearing

  Circus Crowd Extra
• 
  Sue Casey

  Circus Snake Charmer
• 
  Kathleen Freeman

  Custard-Pie Gag Victim
• 
  Joe Gray (I)

  Circus Roustabout
• 
  Zsa Zsa Gabor

  Saadia
• 
  Sandy Descher

  Handicapped Girl

• 
  Douglas Fowley

  Circus Payroll Man
• 
  Al Hill

  Circus Roustabout with Message from Sam
• 
  Elsa Lanchester

  The Bearded Lady
• 
  Kenner G. Kemp

  Circus Crowd Extra
• 
  Joanne Dru

  Jill Brent
• 
  Mary Orozco

  Circus Fat Lady
• 
  Gene Sheldon

  Puffo the Clown
• 
  Nick Cravat

  Timmy

• 
  Hal Pereira

  art director
• 
  Tambi Larsen

  art director
• 
  Farciot Edouart

  camera and electrical departme
• 
  Loyal Griggs

  imagine
• 
  Walter Scharf

  departament sunet
• 
  Edith Head

  costume
• 
  Warren Low

  editorial department
• 
  Joseph H. Hazen

  producător
• 
  Hal B. Wallis

  producător
• 
  Charles C. Coleman

  second unit director or assist
• 
  Sam Comer

  set decorator
• 
  Ray Moyer

  set decorator
• 
  Jerry Lewis

  Soundtrack
• 
  Ray Evans (I)

  Soundtrack
• 
  Dean Martin

  Soundtrack
• 
  Jay Livingston

  Soundtrack
• 
  John P. Fulton

  special effects
• 
  Don McGuire

  scriitor
• 
  Joseph Pevney

  scriitor