Casts
Leif Erickson
as Marty Treleavan
Doug McClure
as George Spencer
Roddy McDowall
as Dr. Ralph Baird
Lois Nettleton
as Janet Turner
Keenan Wynn
as Milton
Jack Ging
as Controller
Sam Melville
as Stewart
Leonard Stone
as Harry Burdick
Christopher Dark
as Mr. McCann
Patricia Mattick
as Ellen
