Col. Jason Grant

Walter Koenig

Acting

Ray Tanner

Bruce Campbell

Acting

Koreman

Robert Kurcz

Acting

Mera

Leigh Lombardi

Acting

Beck

Tom Case

Acting

Intrepid Commander

Judy Levitt

Acting

Haskell

Reavis Graham

Acting

Intrepid Pilot

Reuben Yabuku

Directing

Grant's Son

Doug Childs

Acting

Research Assistant

Mariafae Mytnyk

Acting

Barnes

John J. Saunders

Acting

Lieutenant

James A. Courtney

Production

Additional Voices (voice)

B.K. Taylor

Art