Horror Sci-Fi
A college paleontology professor acquires a newly discovered specimen of a coelacanth, but while examining it, he is accidentally exposed to its blood, and finds himself periodically turning into a murderous Neanderthal man.
Directed by
Jack Arnold
Written by
David Duncan
Whit Bissell
Dr. Oliver Cole
Hank Patterson
Townsend - Night Watchman
Arthur Franz
Donald Blake
Joanna Moore
Madeline Howard
Troy Donahue
Jimmy Flanders
Eddie Parker
Donald as a Monster
Ross Elliott
Sgt. Eddie Daniels
Judson Pratt
Lt. Mike Stevens
Alexander Lockwood
Prof. Gilbert Howard
Helen Westcott
Nurse Molly Riordan
Richard H. Cutting
Tom Edwards - Forest Ranger
Nancy Walters
Sylvia Lockwood
Phil Harvey
Sgt. Powell
Anne Anderson
Student

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