A scientist develops a formula which will cause animals to regress to the form of their primitive ancestors, and tries it on himself with disastrous results.
Director:
Writer:
Robert Shayne
Prof. Clifford Groves
Richard Crane
Dr. Ross Harkness
Joyce Terry
Jan Groves
Doris Merrick
Ruth Marshall
Robert Long
Game Warden George Oakes
Tandra Quinn
Celia
Beverly Garland
Nola Mason, bar waitress
Dick Rich
Sheriff Andy Andrews
Lee Morgan
Charlie Webb, bar owner
Frank Gerstle
Mr. Wheeler, hunter
Robert Easton
Danny, a townsman
Eric Colmar
Buck Hastings, a townsman
Robert Bray
Jim Newcomb, a townsman
Anthony Jochim
Skeptical Naturalist
Marshall Bradford
Naturalists' Conference Chairman
William Fawcett
Dr. Fairchild
Tom Monroe
Thickset Townsman at Webb's Cafe
Ann Staunton
State Trooper Dispatcher
Neanderthal Man Crashes Picnic - The Neanderthal Man (1953)
