Ruthless

Zachary Scott

Horace Woodruff 'Woody' Vendig

Louis Hayward

Vic Lambdin

Diana Lynn

Martha Burnside / Mallory Flagg

Sydney Greenstreet

Buck Mansfield

Lucille Bremer

Christa Mansfield

Martha Vickers

Susan Duane

Dennis Hoey

Mr. Burnside

Edith Barrett

Mrs. Burnside

Raymond Burr

Pete Vendig

Joyce Arling

Kate Vendig

Charles Evans

Bruce Endicott McDonald

Robert J. Anderson

Horace Vendig as a Child

Arthur Stone

Vic Lambdin as a Child

Ann Carter

Martha Burnside as a Child

Edna Holland

Libby Sims

Frederick Worlock

J. Norton Sims

John Good

Bradford Duane

Claire Carleton

Bella

Harry Cheshire

Lawyer Nevin (Uncredited)

Douglas Evans

George (Uncredited)