Raymond Chandler

Mr. Davalos

Tourist at Bar

Dr. Frank Gordon

Mike

Cowhand

San Francisco Dispatcher (uncredited)

Senator

Dirk, a Mutate

Man in Elevator (uncredited)

Salesman (uncredited)

Cutter (uncredited)

Germ Experiment Victim (uncredited)

Newsman (uncredited)

Donal, a searcher

Barney (uncredited)

City Clerk (uncredited)

Fireman (uncredited)

Minor Role (uncredited)

Cowboy (uncredited)

Sam Julian

Penny - Bartender (uncredited)

Stilwell's Assistant

Montague Underdunk