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.
Jack Arnold | Director |
Joseph Gershenson | Producer |
David Duncan | Writer |
Alexander Golitzen | Art Direction |
Russell Metty | Director of Photography |
Ted J. Kent | Editor |
Bud Westmore | Makeup Artist |
Jack Kevan | Creature Design |
Clifford Stine | Visual Effects |