Inuyasha

He is very loyal. He protects Kagome and his friends at all costs. He curses a lot and is violent to people that annoy him. He seems selfish, rough and rude on the outside, but he cares a lot about his friends.
He does everything without thinking first. This part of his personality is sometimes bad in battle because he doesn’t carefully analyze his opponent before attacking. While Miroku thinks about the strategies first, Inuyasha attacks and then learns from his mistake.
Eventhough Kagome and Inuyasha fight a lot, they both love each other deep inside.
Kagome means a great deal to Inuyasha and he would protect her at all costs, even if it means sacrificing himself to do so, but he has another love that he hasn’t forgotten.
Kikyo was Inuyasha’s first love and he is trying not to forget about her. He hasn’t decided on which one he loves more but, in episodes 47 and 48, he gives clues about who he wants to love more. Though, it’s still not fully known. He has feelings for both of them.Father – Youkai
Mother – Human
Half-Brother – Sesshoumaru

Inuyasha is a hanyou . His mother was a human and his father was a very strong youkai. He was made fun of and singled-out by demons and humans because he wasn’t a full youkai nor human. Although he is a hanyou, he’s still strong; stronger than most full youkai.
His half-brother is Sesshomaru, but they don’t act like family. When they meet, all they do is try to kill each other.                                                                                                  He has three different appearances: half-demon form,(normal)  human form,  and demon form when his demon blood takes over.

Weapon(s)
Claws
His claws are capable of doing many attacks, such as Sankon Tetsusou and Hijin Ketsusou. It is very useful when he doesn’t have his sword with him.

Tetsusaiga (sword)
Inuyasha’s sword might look rusty and old, but when it transforms, its strength dramatically increases. It can  kill 100 creatures at once if used right. There’s one way to make this sword transform, the wielder must use it to protect humans. There’s also a barrier it, so it cannot be touched by demons. Only those with human blood can to touch it. It’s most likely due to the fact that it was made using one of the fangs of Inuyasha’s dead father, who loved a human.
The Tetsusaiga can also transform into a bright red fang and break through strong force fields.
This sword also keeps Inuyasha’s demon blood from taking over in life risking situations. Inuyasha must have it in his hand if he does not want to transform.

Tetsusaiga (Sheath)
Since the Tetsusaiga is so powerful a sword, its sheath must also be powerful enough to hold it. It has the power to protect the user from powerful attacks like a shield. When Inuyasha was fighting Hiten, Inuyasha blocked the thunder blast with his sheath.
The sheath also can summon the Tetsusaiga to the owner, if they are in danger.

Sankon Tetsusou
A powerful attack using his razor sharp claws to slash the enemy.

Hijin Ketsusou
Another attack using his claws,  this time with blood on them. Crescent blades are fired at the enemy.
Kaze no Kizu
An attack using his Tetsusaiga. This is made when he slashes the air between two youki.

Bakuryuuha
Tetsusaiga’s ultimate and best attack.
An attack where the enemy is attacked by both their own youki (energy) and the Tetsusaiga’s power.
This attack doesn’t work on weakling youkai because their youki is far too weak.
Half-Demon Form
His appearance is almost the same as a normal human being, except he just has dog ears and possesses some dog characteristics. For example, he itches his ear with his foot like a dog. He also sits like a dog.
He has silver hair and brown-orange eyes. His clothing is all red. He wears a white shirt underneath. He also has very long claws.
He is also forced to wear a magic necklace which make him fall down whenever Kagome says “Sit Boy!”.

Human Form
Sadly enough for Inuyasha, during the night of the new moon,(When the moon appears to be gone) his changes and becomes human because he is a half-demon. He loses his dog ears, and his claws. His hair becomes black. It’s not just his appearance that changes, he also loses the ability to use normal attacks, his ability to heal quickly, and his tetsusaiga does not transform when he uses it.
Other half-demons hide when they transform to keep the exact day of the transformation a secret. Inuyasha also does this, but when his friends are in danger, he risks everything, even his secret.

Demon-Like Form
Inuyasha inherited a very powerful type of demon blood from his dad, which the body of a half-demon cannot control. In a life risking situation when he is not using a tetsusaiga, his demon blood takes over his body and he becomes a demon-like form. He is not a full demon in this form, he still remains a half-demon. In this transformation, Inuyasha loses himself completely. He destroys everything in sight, whether it’s a human or a demon. He might even kill Kagome because he has no way of knowing what he’s doing. When he transforms back into his normal-self, he can’t remember anything. If he transforms into this state alot, Inuyasha would not be able to go back to normal and he would go on destroying until his body died. Most demons with a strong sense of smell have noticed that his blood smells like the blood of a full demon.
His eyes become completely red and his claws become dripping with the blood of the many creatures he has killed. His face also becomes dark and his expression becomes creepy