Walter Abel as D'Artagnan

Margot Grahame as Milady de Winter

Paul Lukas as Athos

Moroni Olsen as Porthos

Onslow Stevens as Aramis

Heather Angel as Constance

Ian Keith as Count de Rochefort

Rosamond Pinchot as Queen Anne

John Qualen as Planchet

Ralph Forbes as Duke of Buckingham

Nigel De Brulier as Richelieu

Murray Kinnell as Bernajou

Lumsden Hare as De Treville

Miles Mander as King Louis XIII

Lionel Belmore as Inn Proprietor

Stanley Blystone as Villard

Wade Boteler as Peylerand

Ralph Faulkner as Jussac

Frank Lackteen as Paris Gate Watch

Ferdinand Munier as First Innkeeper

Russ Powell as The Shepherd

Tom Ricketts as Pigeon Receiver

Cliff Saum as Palace Guard

Lucille Ball as (uncredited)

Viola Moore as (uncredited)