Graydon Creed Sr.

Sabretooth is a violent, sadistic, cruel, and deceitful mutant. Unlike Wolverine, Sabretooth fully embraces his inner savagery and has no qualms about harming others. The reason for his cruelty seems to come from his harsh childhood, when he was martyred by his father. Graydon is the son of Jebediah Creed, a redneck zealot who beat him for his mutant deformities as a child. He hides away these memories and is heavily traumatized from them.

This beating would slowly turn Graydon against humanity and most other people. Graydon, taking the codename 'Sabretooth' joined the Weapon X facility's team, Team X along with Silver Fox, Maverick and Wolverine who became good friends with Creed. The team worked together for a while until Creed killed some of Logan's friends for no reason and Logan left the team.