In X2, what is the name of the mutant who can control metal?

In X2, the mutant who can control metal is Magneto.

Magneto is the codename of Erik Lehnsherr, a mutant with the ability to manipulate metal and electromagnetic forces. In X2, Ian McKellen reprises the role from the first X-Men film. Although he remains an antagonist, the story temporarily places him alongside the X-Men against Colonel William Stryker’s plan to attack mutantkind.

Magneto’s power is especially important during the film’s climax, when he uses his abilities to affect a large metal structure. His alliance with Charles Xavier is uneasy because the two characters disagree about whether mutants and humans can coexist peacefully.

The character’s backstory is linked to his childhood persecution during the Holocaust, which explains his distrust of human authorities. In the prequel films, Michael Fassbender plays a younger version of Magneto, while Ian McKellen portrays the older version in the original trilogy and X2.