Bing Crosby

Hank Martin

Rhonda Fleming

Alisande La Carteloise

Cedric Hardwicke

King Arthur

William Bendix

Sir Sagramore

Murvyn Vye

Merlin

Virginia Field

Morgan Le Fay

Joseph Vitale

Sir Logris

Henry Wilcoxon

Sir Lancelot

Richard Webb

Sir Galahad

Alan Napier

High Executioner

Julia Faye

Lady Penelope

Mary Field

Peasant woman

Ann Carter

Peasant girl

John George

Peasant (uncredited)

Lucille Barkley

Page Girl (uncredited)

Tay Garnett