Lost John
Bruce Cooper
Commander Blake
Durwood
Dr. Tom Robinson
Professor Kloppner, Eastbrook Academy
Robert Tuckson
Angel
Doctor Crawford / Matthew Crawford
General MacDonald
Nate Nathanson
Jack Blaine
Dr. Ernest Greene
Ed Judson
Jordon Carelli
Steven Moss
Curtis Bittan
Burnside
Dr. Coleman
Frank Wells
Krone
Interviewer
Dr. John Webster
Larry Quinn
Lamar
Jack Goode
The Sure Shot's Manager (Frank Butler)
Man at Bar
Dr. Death
Boy at Birthday Party (uncredited)
Little Boy (uncredited)