The X-Men have gone from five awkward teens and a bald, bookish professor into the preeminent superhero team to beat. Along the way they've accumulated the longest roster of heroes, heroines, aliens, alt-reality characters and former villains into their ranks, and undoubtedly there have been a few lemons in the bunch. Here's five of the worst characters ever to hold the distinction of being an X-Man.
Although his power set might make him a favorite when you were playing your Marvel RPG game back in the day, Mimic failed to light fans' imagination on fire in his appearances. Mimic holds the distinction of being the first new recruit after the original five and also the first non-mutant to become an X-Men. Mimic first crossed the Xavier kids' paths as a villain and made his way onto the team only after one of the most foolhardy cases of blackmail in comics history. He's made some furtive steps at redemption in the pages of Excalibur and Dark X-Men, but face it — he's not X-Men material.
The Japanese hero Sunfire proved to have a personality too much like the powers that gave him his name, making his membership in the "All-New All-Different" as short as his temper. He's been positioned as more an occasional ally than a trusted part of the team, and has even fought on the side of evil in both Apocalypse's Horsemen as well as the Marauders.
Although a classic part of the 80s and 90s Uncanny X-Men, and later as a trusted tech-head for the team, Forge has an uncanny ability to screw up on numerous occasions. People might point to his recent villainous turn in Warren Ellis' Astonishing X-Men run as the big strike against him, but he was also responsible for bringing the Adversary to the X-Men's doorstep on the roof of a Dallas skyscraper and led to the deaths of the entire X-Men team at the time. For more, check out Ben Morse's extended write-up over on the Cool Kids Tale blog for the fallacies of Forge in the X-Men. All in all, it looks like a pony tail, cyborg parts and fringed boots are a deadly combination.
I'm a big fan of Joe Casey's work, but his run on Uncanny X-Men threw me for a loop… especially with Stacy-X. Discovered by the team at a Bunny-Ranch style house of ill repute called X-Ranch, Stacy-X turned from super-powered prostitute to X-Men but forgot to leave her old career behind. After "No More Mutants" she found a second life as Ripcord in the most recent itteration of New Warriors, but was ultimately killed in an superhero accident.
The X-Men are no stranger to villains-turned-heroes, with everyone from Magneto to Emma Frost and Namor among their ranks these days. But it seems Mystique can't leave her dark past behind, but the X-Men keep giving her chances only to find it biting them where it hurts. Mystique's done everything from assassinate mutants in cold blood, to causing Wolverine more than a world of hurt on numerous occasions, and to shooting her adopted daughter Rogue in the head. She's proven herself a bad parent to long-time X-Men Nightcrawler and Rogue, so maybe they should take that little skull on her face as a sign to stay away.