Boris Karloff

Character: Prof. Marcus Monserrat

Catherine Lacey

Character: Estelle Monserrat

Elizabeth Ercy

Character: Nicole

Ian Ogilvy

Character: Mike Roscoe

Victor Henry

Character: Alan

Sally Adams

Character: Laura Ladd

Meier Tzelniker

Character: The Jewish Baker

Gerald Campion

Character: Customer in China Shop

Susan George

Character: Audrey Woods

Ivor Dean

Character: Insp. Matalon

Peter Fraser

Character: Detective George

Martin Terry

Character: Tobacconist

Bill Barnsley

Character: Constable in Fur Store

Maureen Booth

Character: Dancer

Toni Daly

Character: Vocalist

Arnold L. Miller

Character: Taxi driver

Alf Joint

Character: Ron, the mechanic