Boris Karloff
Dr. Leon Kravaal
Acting
Roger Pryor
Dr. Tim Mason
Acting
Jo Ann Sayers
Nurse Judith Blair
Acting
Stanley Brown
Bob Adams
Acting
John Dilson
John Hawthorne
Acting
Hal Taliaferro
Sheriff Stanton
Acting
Byron Foulger
Dr. Bassett
Acting
Charles Trowbridge
Dr. Harvey
Acting
Ernie Adams
Pete Daggett
Acting
Minta Durfee
Frozen Therapy Patient (uncredited)
Acting
Charles Miller
Doctor Spectator Explaining Procedure (uncredited)
Acting
Eddie Dew
Doctor Spectator Listening to Explanation (uncredited)
Acting
James Conaty
Doctor Spectator (uncredited)
Acting
Wedgwood Nowell
Doctor Spectator (uncredited)
Acting
Cyril Ring
Doctor Spectator (uncredited)
Acting
William Marion
Doctor Spectator (uncredited)
Acting
Landers Stevens
Doctor Spectator (uncredited)
Acting
Ivan Miller
Sheriff Haley (uncredited)
Acting
Bruce Bennett
State Trooper (uncredited)
Acting
Charles Halton
Doctor in Front Row in Final Scene (uncredited)
Acting
Lee Willard
Frozen Body of Jasper Adams (uncredited)
Acting