Sabretooth is a major antagonist in Super Smash Bros. Crossover. Sabretooth is Wolverine's rival and is also a loyal follower of Magneto. Sabretooth was part of the team Magneto organized to find Bowser and Zombie Reed in Season 16. Sabretooth reappears in Season 18, where he gets a member of the Daily Bugle to take a picture of Zombie Spider-Man eating people. Sabretooth is then ordered by Magneto to kill the other zombies that have resided on Earth. Sabretooth is later infected, but he manages to save Orochimaru from being infected. Sabretooth is later killed by Yami Bakura when he blasts his head off. Sabretooth is later revived as one of Yami Bakura's reanimated soldiers. Oddly, Sabretooth is not infected despite dying as such. Sabretooth is revived by Shenron at the end of Season 19.
Sabretooth's appearance is based off his appearance in X-Men Evolution.
Sabretooth is vicious, especially with Wolverine. Despite his lone wolf nature, Sabretooth is very loyal to Magneto, to the point where he reprimands anyone who disagrees with Magneto. Magneto appears to trust Sabretooth completely, as Sabretooth was the only villain, besides Professor Viper, that wasn't a main antagonist of any season that was part of the team Magneto gathered to find Bowser and Zombie Reed.