演职人员
Jeff Knight
彼得·格雷夫斯
Dana
Eileen Dietz
Lena
Paulette Breen
George Walker
Frank Ashmore
Dr. Jameson
Dick Sargent
Dr. Nelson
Zale Kessler
Clone
William Bufkin
Jack
Tony Haig
Senator
Boyd Holister
Jake Noble
基南·怀恩
Anna Noble
Lurene Tuttle
Ricky Knight
James Mantell
Richard Knight
David Hooks
Reporter Birney
Frank Birney
Guide #1
Rick DiAngelo
Guide #2 (as Gene Glazer)
Eugene Robert Glazer
Richard (as Timothy Donnelly)
Tim Donnelly
Walker Man
Chuck Hayward