David Love

as Derek

Dawn Bender

as Betty Morgan

Harvey B. Dunn

as Gramps Morgan

Bryan Grant

as Thor

Tom Graeff

as Joe Rogers

King Moody

as Spacecraft Captain

Helen Sage

as Nurse Morse

Frederick Welch

as Dr. C.R. Brandt, MD

Carl Dickensen

as Gas Station Attendant

Sonia Torgeson

as Alice Woodward

Billy Bridges

as Driver picking up Thor

James Conklin

as Professor Simpson

Gene Sterling

as The Alien Leader

Ralph Lowe

as Moreal, Spaceship Crew

Bill DeLand

as Saul, Spaceship Crew

Ross Evans

as School Janitor