• 
  David Lowell Rich

  regizor

• 
  William Shatner

  Paul Kovalik
• 
  Paul Winfield

  Dr. Enkalla
• 
  Roy Thinnes

  Alan O'Neill
• 
  H.M. Wynant

  Frank Driscoll
• 
  France Nuyen

  Annalik
• 
  Jane Merrow

  Sheila O'Neill
• 
  Darleen Carr

  Margot

• 
  Robert Donner

  Dispatcher
• 
  Russell Johnson

  Jim Hawley
• 
  Mia Bendixsen

  Jodi
• 
  Will Hutchins

  Steve Holcomb
• 
  Tammy Grimes

  Mrs. Pinder
• 
  Chuck Connors

  Captain Ernie Slade
• 
  Buddy Ebsen

  Glenn Farlee

• 
  James Hulsey

  art director
• 
  Morton Stevens

  departament sunet
• 
  Harry Gordon

  set decorator
• 
  Barry Thomas (II)

  sound department
• 
  Ronald Austin

  scriitor