출연진
로버트 포스터
Prof. Paul Corwin / The Clone
베스 오브라이언
Margaret Corwin
Ray Milland
Prof. Meredith
David Sheiner
Prof. Sidney Hillstrom
John Lehne
Lt. Merholz
Denise DuBarry
Ann Sweeney
Jack De Mave
Roger
Thomas Bellin
Ed Linnick
Heather Hobbs
Jenny
Eddie Quillan
Watchman
Raye Sheffield
Clone
Russell Shannon
Guard
James Nolan
Dr. Tapler
Madeleine Shaner
Audrey Linnick
Johnny Hock
1st Skater
Tom Elliott
2nd Skater
Thomas McGowan
Andrew Pauletta (uncredited)
John Herman Shaner
Fire Captain (uncredited)
D.A. Young
Lance (uncredited)