He wants to warn Arthur not to fight Mordred for a month.
gawain
No he is not alive,He appears to king Arthur in his dream.
No one. There's nothing about King Arthur dreaming, or even falling asleep in the story.
Gawain
Arthur is reluctant to follow Gawain's advice because he may see Gawain as less experienced or knowledgeable in the situation at hand. Additionally, Arthur may have his own perspective or plan in mind that differs from Gawain's advice. Lastly, there could be a sense of pride or ego involved that prevents Arthur from readily accepting and implementing Gawain's advice.
Gawain's ghost
He is in bewildered and proud of Gawain.
MAIN: arthur, lancelot, Merlin and also Gawain
beware of the succubus
yes
Sir Gawain is from the legends of King Arthur. He fought and cut off the head of the Green Knight in 'Sir Gawain and the Green Knight'.
yes