Lucretia Borgia

Paulette Goddard

Acting

Alfonso D'Este

John Lund

Acting

Cesare Borgia

Macdonald Carey

Acting

Vanetti

Albert Dekker

Acting

Prince Bisceglie

John Sutton

Acting

Michelotto

Raymond Burr

Acting

Tiziano

Donald Randolph

Acting

Bastino

Charles Dayton

Acting

Captain of the Guard

Anthony Caruso

Acting

Negligent Sentry

Dick Foote

Acting

Conti Peruzzi

William Farnum

Acting

Gemma

Kate Drain Lawson

Acting

Chamberlain

Nicholas Joy

Acting

Filippo

Fritz Leiber

Acting

Lady Eleanora

Rose Hobart

Acting

False Physician

Douglas Spencer

Acting

Mayor

Nestor Paiva

Acting

Bolfi

Frank Puglia

Acting

Councillor

Houseley Stevenson

Acting

Councillor

Robert Greig

Acting

Councillor

Don Beddoe

Acting

Councillor (uncredited)

Ian Wolfe

Acting