Robert Hardy

Detective Superintendent Brooks

Geoffrey Keen

Commissioner Dalby

Sydney Tafler

Harrison Liston

George Claydon

Bruno Fontana

Philip Madoc

Lazlo

Ambrosine Phillpotts

Miss Burrows

Thomas Cimarro

Gaspar

Peter Burton

Gustavo

Howard Goorney

Emil

Marianne Stone

Wanda

Golda Casimir

Bearded Lady

Ted Lune

Skeleton Man

Milton Reid

Strong Man

Reginald Marsh

Sergeant Hutchins

Bryan Pringle

Constable Bradford

George Lane Cooper

Roustabout (Uncredited)

Arthur Goodman

Talent Agent (Uncredited)

Bill Hibbert

Policeman (Uncredited)

Robert Rowland

Big Top Ticket Holder (Uncredited)

Reg Thomason

Reporter (Uncredited)

Cyril Kent

Circus Worker (Uncredited)

Herman Cohen

Circus Audience (Uncredited)

Fred Wood