Benvenuto Cellini

Fredric March

Duchess of Florence

Constance Bennett

Alessandro - Duke of Florence

Frank Morgan

Angela

Fay Wray

Beatrice

Jessie Ralph

Ascanio

Vince Barnett

Lady-in-Waiting (uncredited)

Lucille Ball

Ottaviano

Louis Calhern

Emissary

Paul Harvey

Polverino

Jay Eaton

Captain of Guards

Jack Rutherford

Palace Guard Finding Cellini's Clothes (uncredited)

Ward Bond

Daughter of the Royal House of Bocci

Irene Ware

Court Member (uncredited)

Lionel Belmore

Lady-in-Waiting (uncredited) (unconfirmed)

Bess Flowers

Girl (uncredited)

Bonnie Bannon

Jailer (uncredited)

Lane Chandler

Palace Guard (uncredited)

James Flavin

Executioner (uncredited)

Theodore Lorch

Servant (uncredited)

Russ Powell

Steward (uncredited)

Dewey Robinson

Executioner (uncredited)

Constantine Romanoff

Henchman (uncredited)

Harry Wilson