Axel|Chakram Master|Red Head Hyuga|The Flurry of Dancing Flames
Axel wears the basic black gloves and boots. His black coat, however, is one of the more distinctive ones in the group, as its sleeves close up tightly around his arms and emphasizes his lithe and skinny build. Axel himself is also easily distinguishable from other characters in terms of facial features, made easier by the fact that he rarely wears the hood of his coat up. Axel has a widow's peak, rather small eyebrows and thick, shoulder-length, bright red hair styled into slicked-back spikes. His eyes are a bright emerald color and he has a purple reverse-teardrop shaped marking under each eye, which are similar to, although not the same as, Reno's facial markings.
When he is first introduced at the beginning of Kingdom Hearts: Chain of Memories, Axel has a mysterious, stoic, and calm demeanor on par with that of Marluxia. A very good liar, he makes a point of keeping himself difficult to read, coming off as fooling around when really his mind is at work manipulating the other members around him. Axel often makes witty conversation with Larxene while Marluxia is away, though is almost completely unfazed by her flirtatious behavior towards him. He also has friendly bets with Zexion as to which member will be defeated next, seeming amused at their deaths.
Eventually, Axel betrays both with no remorse. Vexen's cries for mercy only receive a cruel "Aren't you happy to die?" and a cocky "Goodbye" before Axel incinerates him without any hesitation. This cruel nature persists even when Marluxia uses Naminé as a human shield against him: Axel confidently declares he would eliminate Naminé to get to Marluxia. He is a person who does what is necessary to keep his actions, like those in Castle Oblivion, unnoticed by the rest of the Organization, so that his and his allies' goals are attained smoothly.
Axel's personality changes drastically in between the years because of his friendship with Roxas and Xion.He has a very sarcastic and laid-back, "go with the flow" outlook on many things, including missions and battles, very similar to Marluxia. He also is shown to have a very kind and protective side towards Roxas and Xion, which is ironic for a Hyūga and his actions at Konohagakure. He acts like an older brother towards them, being their main source of advice and wisdom, shown by Roxas in a journal entry when he wrote that he thought Axel knew everything. In some cases he got them out of trouble even when it could and did earn him his own trouble, like his dismissal and eventual betrayal of Saïx to protect them both. Axel apparently does not like to talk about his past despite Saïx's insistence on its significance. Whenever Roxas or Xion asked him about it, he would give a brief or vague answer, then try to change the subject, often avoiding eye-contact when lying.