Viewtiful Joe.
In the games he was voiced by Dee Bradley Baker. He had a really cheesy inflection that struck a good balance of feeling like a bit of a loser but also really cool and straight-faced when under the mask, not too dissimilar to the likes of Spider-Man. It felt natural, his cockiness was charming by extension. He was Dante before Dante was written by Itsuno, and his VA helped convey that personality.
In Marvel vs Capcom 3 he was voiced by Darrel Guilbeau and... he doesn't fit, at all. Lest Joe's big fat fucking head in MvC3 goes unmentioned, making him look like a weird goblin person, his voice sounds too forced and high pitched. It's not helped by the writing behind him being really poor. Joe usually manifests his fourth wall awareness into a cocksure attitude, and he usually plays it pretty cool when going up against villains. His personality in MvC3 by comparison makes him come across as kinda wacky, bumbling and obnoxious. While I think that Joe in the games definitely had elements of that personality, it was usually balanced by how smooth of a VA that Baker was, and that's lost here.
If VJ3 exists, they better get Baker back in the role.