• 
  Sterling Holloway

  Chris Jensen, Midwestern's Janitor
• 
  Edmund Gwenn

  James Corcoran, Midwestern U. President
• 
  Rosemary DeCamp

  Minna Fields
• 
  William Gargan

  Sam Peters
• 
  Sidney Blackmer

  Professor John Stevens
• 
  William Farnum

  Judge Peters
• 
  Charles Judels

  Cecco, Restraunt Owner
• 
  Mary Field

  Mary, the Dressmaker

• 
  Morris Ankrum

  Professor at Minna's Hearing
• 
  Martha Scott

  Ella Bishop
• 
  Rand Brooks

  Buzz Wheelwright
• 
  Donald Douglas

  Delbert Thompson, Attorney
• 
  Edmund Mortimer

  Dinner Guest
• 
  Pierre Watkin

  President Crowder
• 
  John Arledge

  John 'Snapper' MacRae

• 
  Howard C. Hickman

  Professor Lancaster
• 
  Marsha Hunt

  Hope Thompson, Amy's Daughter
• 
  Dorothy Peterson

  Mrs. Bishop, Ella's Mother
• 
  John Archer

  Richard Clark
• 
  Mary Anderson (I)

  Amy Saunders
• 
  Donald Douglas

  Delbert Thompson
• 
  Knox Manning

  Anton Radcheck
• 
  Jack Mulhall

  Professor Carter
• 
  Lois Ranson

  Gretchen Clark