

19/06/1953
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.

Robert Shayne
as Prof. Clifford Groves

Richard Crane
as Dr. Ross Harkness

Joyce Terry
as Jan Groves

Doris Merrick
as Ruth Marshall

Robert Long
as Game Warden George Oakes

Tandra Quinn
as Celia

Beverly Garland
as Nola Mason, bar waitress

Dick Rich
as Sheriff Andy Andrews

Lee Morgan
as Charlie Webb, bar owner

Frank Gerstle
as Mr. Wheeler, hunter

Robert Easton
as Danny, a townsman

Eric Colmar
as Buck Hastings, a townsman

Robert Bray
as Jim Newcomb, a townsman

Anthony Jochim
as Skeptical Naturalist

Marshall Bradford
as Naturalists' Conference Chairman

William Fawcett
as Dr. Fairchild

Tom Monroe
as Thickset Townsman at Webb's Cafe

Ann Staunton
as State Trooper Dispatcher
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