Tony Curtis as Myles Falworth

Janet Leigh as Lady Anne of Mackworth

David Farrar as Gilbert Blunt, Earl of Alban

Barbara Rush as Meg Falworth

Herbert Marshall as William, Earl of Mackworth

Torin Thatcher as Sir James

Dan O'Herlihy as Prince Hal of Wales

Patrick O'Neal as Walter Blunt

Craig Hill as Francis Gascoyne

Ian Keith as King Henry IV

Doris Lloyd as Dame Ellen, Lady-in-Waiting

Rhys Williams as Diccon Bowman

Leonard Mudie as Friar Edward

Maurice Marsac as Count de Vermois

Leo Britt as Sir Robert

Charles B. Fitzsimons as Giles

Gary Montgomery as Peter

Claud Allister as Sir George

Hamilton Camp as Roger Ingoldsby

Harry Cording as Captain of King's Guards (uncredited)

Nicolas Coster as Humphrey, Young Squire (uncredited)

Charles Evans as Lord Archbishop (uncredited)

Richard B. Fitzgerald as Sentry (uncredited)

Lance Fuller as Guard (uncredited)

Brett Halsey as Young Squire / Apprentice Knight (uncredited)

Chuck Hamilton as Court Observer (uncredited)

Ramsay Hill as Sir Charles (uncredited)

Robert F. Hoy as First Guard (uncredited)

Nelson Leigh as Archbishop at Myles' Knighting (uncredited)

James Logan as (uncredited)

Ralph Moratz as Court Knave (uncredited)

Damian O'Flynn as Sir Alexander (uncredited)

Reginald Sheffield as Lord Constable (uncredited)