Warren William

Character: Michael Lanyard / The Lone Wolf

Ann Savage

Character: Valerie King

Eric Blore

Character: Llewellyn Jameson

Robert Stanford

Character: Donald Jameson

Sheldon Leonard

Character: Johnny Booth

Lloyd Bridges

Character: Fritz

Gavin Muir

Character: Karl

Grace Lem

Character: Chinese Lady at Nightclub

Sig Arno

Character: Mr. Whistler

Frank Arnold

Character: French Waiter

Frances Chan

Character: Chinese Lady at Nightclub

Darby Jones

Character: Bellboy

Frank Lackteen

Character: Laundry Proprietor

Mal Merrihugh

Character: Chauffeur

Louis Merrill

Character: Mr. Rembrandt

Jay Novello

Character: Mr. Cezanne

Frank O'Connor

Character: Wembley Agent

Jack Rice

Character: Hotel Night Clerk

Floyd Shackelford

Character: Bellboy

Gene Stone

Character: Bartender

Nick Thompson

Character: Henchman in Laundry

John Tyrrell

Character: Wembley Agent

Frederick Worlock

Character: Sir Roger Wembley