• 
  Ronny Cox

  Doc (voice)
• 
  Kristy McNichol

  Angie Romar (voice)
• 
  Edward Laurence Heimberger

  Rafe (voice)
• 
  Thom Adcox-Hernandez

  Simon (voice) (as Thom Adcox)
• 
  Harve Bennett

  President McAllister (voice)
• 
  Susan Blu

  Additional Voices (voice)
• 
  Greg Eagles

  Philip Stark (voice)
• 
  Jim Cummings

  Major Lomack (voice)

• 
  Jennifer Darling

  Additional Voices (voice)
• 
  Pat Fraley

  Additional Voices (voice)
• 
  Tony Jay

  The Dragit (voice)
• 
  Mikey Kelley

  David Carter (voice)
• 
  James Sikking

  General Gordon (voice) (as James B. Sikking)
• 
  Kath Soucie

  Rita Carter / Sonia (voice)
• 
  Rider Strong

  Jim Bailey (voice)