Teenagers from Outer Space

David Love Derek Dawn Bender Betty Morgan Harvey B. Dunn Gramps Morgan Bryan Grant Thor Tom Graeff Joe Rogers King Moody Spacecraft Captain Helen Sage Nurse Morse Frederick Welch Dr. C.R. Brandt, MD Carl Dickensen Gas Station Attendant Sonia Torgeson Alice Woodward Billy Bridges Driver picking up Thor James Conklin Professor Simpson Gene Sterling The Alien Leader Ralph Lowe Moreal, Spaceship Crew