Characters played by David Love
Derek
Characters played by Dawn Bender
Betty Morgan
Characters played by Bryan Grant
Thor
Characters played by Harvey B. Dunn
Gramps Morgan
Characters played by Tom Graeff
Joe Rogers
Characters played by King Moody
Spacecraft Captain
Characters played by Helen Sage
Nurse Morse
Characters played by Frederick Welch
Dr. C.R. Brandt
Characters played by Carl Dickinson
Gas Station Attendant
Characters played by Sonia Torgeson
Alice Woodward
Characters played by Billy Bridges
Driver Picking Up Thor
Characters played by James Conklin
Prof. Simpson
Characters played by Gene Sterling
The Alien Leader
Characters played by Ralph Lowe
Moreal - Spaceship Crew
Characters played by Bill DeLand
Saul - Spaceship Crew