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

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