Horror Sci-Fi
A college paleontology professor acquires a newly discovered specimen of a coelecanth, 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
Joanna Moore
Madeline Howard
Whit Bissell
Dr. Oliver Cole
Alexander Lockwood
Prof. Gilbert Howard
Arthur Franz
Donald Blake
Ross Elliott
Sgt. Eddie Daniels
Troy Donahue
Jimmy Flanders
Hank Patterson
Townsend - Night Watchman
Judson Pratt
Lt. Mike Stevens
Helen Westcott
Nurse Molly Riordan
Eddie Parker
Donald as a Monster
Nancy Walters
Sylvia Lockwood
Richard H. Cutting
Tom Edwards - Forest Ranger
Phil Harvey
Sgt. Powell
Anne Anderson
Student

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