The Mystery of the 13th Guest

Helen Parrish

Marie Morgan

Dick Purcell

Johnny Smith

Tim Ryan

Lieutenant Burke

Frank Faylen

Speed Dugan

Jacqueline Dalya

Marjory Morgan

Paul McVey

Adam Morgan

Johnny Duncan

Harold Morgan

John Dawson

Tom Jackson

Cyril Ring

Barksdale

Addison Richards

District Attorney

Lloyd Ingraham

Grandfather Morgan

Robert J. Anderson

Young Harold (uncredited)