Barbara Steele | Dr. Mengers | |
Phil Tippett | (neoficiálně) | |
Bradford Dillman | Paul Grogan | |
Keenan Wynn | Jack | |
Belinda Balaski | Betsy | |
Bruce Gordon | Colonel Waxman |
Joe Dante | (neoficiálně) | |
Kevin McCarthy | Dr. Robert Hoak | |
Heather Menzies-Urich | Maggie McKeown | |
Dick Miller | Buck Gardner | |
Melody Thomas Scott | Laura Dickinson | |
Barry Brown | Trooper |