Robert Taylor
Lancelot
Acting
Ava Gardner
Guinevere
Acting
Mel Ferrer
Arthur
Acting
Anne Crawford
Morgan Le Fay
Acting
Stanley Baker
Modred
Acting
Felix Aylmer
Merlin
Acting
Maureen Swanson
Elaine
Acting
Gabriel Woolf
Percival
Acting
Anthony Forwood
Gareth
Acting
Robert Urquhart
Gawaine
Acting
Niall MacGinnis
Green Knight
Acting
Ann Hanslip
Nan
Acting
Jill Clifford
Bronwyn
Acting
Stephen Vercoe
Agravaine
Acting
Alan Tilvern
Steward (uncredited)
Acting
Patricia Owens
Lady Vivien (uncredited)
Acting
Dana Wynter
Morgan Le Fay's servant (uncredited)
Acting