A young Viking prince strives to become a knight in King Arthur's Court and restore his exiled father to his rightful throne.
| Actor | Role |
|---|---|
 James MasonSir Brack | Sir Brack |
 Janet LeighPrincess Aleta | Princess Aleta |
 Robert WagnerPrince Valiant | Prince Valiant |
 Debra PagetIlene | Ilene |
 Sterling HaydenSir Gawain | Sir Gawain |
 Victor McLaglenBoltar | Boltar |
 Donald CrispKing Aguar | King Aguar |
 Brian AherneKing Arthur | King Arthur |
 Barry JonesKing Luke | King Luke |
 Mary PhilipsQueen | Queen |
 Howard WendellMorgan Todd | Morgan Todd |
 Tom ConwaySir Kay | Sir Kay |
| SSammy OggSmall Page (uncredited) | Small Page (uncredited) |