• 
  Roy Engel

  Tommy the Constable
• 
  William Schallert

  Dr. Mears
• 
  Raymond Bond

  Prof. Elliot
• 
  Robert Clarke

  John Lawrence
• 
  Gilbert Fallman

  Dr. Robert Blane
• 
  Margaret Field

  Enid Elliot
• 
  June Jeffery

  Wife of Missing Man
• 
  David Ormont

  Inspector Porter

• 
  Tom Daly

  Donal - a searcher

• 
  John L. Russell

  imagine
• 
  Fred R. Feitshans Jr.

  montaj
• 
  Jack Pollexfen

  producător
• 
  Aubrey Wisberg

  producător
• 
  Jack Pollexfen

  scriitor
• 
  Aubrey Wisberg

  scriitor