Walter Koenig
Col. Jason Grant
Acting
Bruce Campbell
Ray Tanner
Acting
Robert Kurcz
Koreman
Acting
Leigh Lombardi
Mera
Acting
Tom Case
Beck
Acting
Judy Levitt
Intrepid Commander
Acting
Reavis Graham
Haskell
Acting
Reuben Yabuku
Intrepid Pilot
Directing
Doug Childs
Grant's Son
Acting
Mariafae Mytnyk
Research Assistant
Acting
John J. Saunders
Barnes
Acting
James A. Courtney
Lieutenant
Production
B.K. Taylor
Additional Voices (voice)
Art