While some of the alternate Marks have identifiers, such as "Mohawk Mark" and "Sinister Mark," it's tough to say which one we see in the trailer. It's noteworthy that he's wearing the same costume as the main timeline Mark, as many variants have different costumes. For example, Alternate Mark Seven's outfit is blue and red, taking after Omni-Man, which is appropriate since Mark killed his father in that reality. Regardless, there are probably going to be quite a few Marks in the new "Invincible" season, leading up to the show's version of the Invincible War.
In the comics, after Mark seemingly kills Angstrom Levy, the villain unleashes a group of 16 alternate Marks upon Invincible's world, where they wreak all kinds of havoc. Fortunately, our Mark isn't alone, as numerous other superheroes join the battle to try to stop his interdimensional counterparts. After a thrilling Season 1 finale, Season 2 has its work cut out for it in trying to up the ante, and bringing in numerous evil Marks would definitely be the way to do it. Then again, it's always possible that "Invincible" Season 2 will end on a cliffhanger that sets up the Invincible War for later.
The "Invincible" comics did the multiverse long before it was fashionable, so the new season isn't trying to get in on a trend but rather attempting to tell a compelling story that really makes Mark question whether it's in his nature to turn evil. And with an infinite number of Marks available, "Invincible" Season 2 can really get wild.
