Walter Koenig
Col. Jason Grant
Walter Koenig
Col. Jason Grant
Bruce Campbell
Ray Tanner
Robert Kurcz
Koreman
Leigh Lombardi
Mera
Tom Case
Beck
Judy Levitt
Intrepid Commander
Reavis Graham
Haskell
Reuben Yabuku
Intrepid Pilot
Doug Childs
Grant's Son
Mariafae Mytnyk
Research Assistant
John J. Saunders
Barnes
James A. Courtney
Lieutenant
B.K. Taylor
Additional Voices (voice)
Robert Dyke
Director
Peter Klein
Director of Photography
B.K. Taylor
Production Design
Rebecca Poulos
Script Supervisor
Donnie Allen
Gaffer
Peter M. Gurski
Art Direction
Ted Lindsey
Camera Operator
Dan Danilowicz
Still Photographer
Steven C. Craig
Editor
Gary Cooney
Hairstylist
Larry Fox
Art Direction
Tex Ragsdale
Screenplay
Robert Dyke
Producer
Kevin Tent
Editor
Michele Poulik
Set Decoration
Deborah K. Larsen
Costume Design
Jeffrey M. Jones
Sound Effects Editor
Sheldon J. Nueman
Sound Engineer
Gary Jones
Special Effects
Joseph LoDuca
Original Music Composer