He is of Breton origin, unlike the other Knights of the Round Table who come from the British Isles. Lancelot is the son of King Ban de Bénoïc and Queen Élaine. In his early childhood he was called Galaad, a name that he later gave to his son.

Queen Guinevere is a character of the Arthurian legend, wife of King Arthur. His adulterous relationship with Lancelot is a recurring theme of the cycle.

Archetypal figure of the courtly lady, fairy, goddess, Guinevere is a multifaceted character

Mordred (Gwydion) is a character from the Arthurian legend, son of King Arthur and his half-sister, Morgane (or Morgause in the older versions). He is often presented as the half-brother of Gauvain, Agravain, Gaheris and Gareth, son of Morgause.

Galaad, Galahad, or Galaaç is the son of the Knight Lancelot du Lac and Ellan, daughter of King Pellès, King Fisher, who holds the Grail. Its name comes from the Welsh Gwalchaved: "summer falcon". He is the youngest knight of the Round Table.

He is the model knight: in addition to being an exceptional knight, he shows exemplary courtesy for all the other knights of his time. Gawain frequently wears King Arthur's sword: Excalibur. Gauvain is Yvain's cousin who is also for him a dear friend.

But even though his role in the novels has been diminished, Perceval has remained an important figure and he is one of only two knights (the other being the knight Bohors) who accompanied Galaad to the Grail Castle and conducted the search with him .

Uther is the youngest son of King Constantine II. The eldest, Constant, heir to the throne of Brittany, is killed by the usurper Vortigern. ... Became king in his turn, he adopts the name of Pendragon and makes two gold dragons, one of which serves him as a badge. He continues successfully the fight against the Saxons.

In fact, many elements that are now part of the history of King Arthur appear in the Historia Regum Britanniae: the father of Arthur Uther Pendragon, Merlin the Enchanter, the sword Excalibur, the birth of Arthur at Tintagel, his last battle against Mordred at Camlann

Merlin is surrounded by other literary characters from a Celtic mythological background or Arthurian legend. The best known are the Blaise scribe who records his story, the King Arthur whom he watches and protects, and the fairy Viviane he loves. Morgane and Viviane are his pupils.

Many half-brothers by his father Odin. Thor or Tor is the god of Thunder in Norse mythology. He is one of the leading gods of the Nordic pantheon, and was revered throughout the Germanic world.