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