Obviously, the character of Kurt Wagner (but in the Munich circus, he was known as the incredible Nightcrawler) was one of the best parts of Bryan Singer's X-Men 2, with the opening scene that sees the blue mutant bamfing all over the White House one of the best set-pieces in the entire history of the franchise. The simple reason that Nightcrawler makes it onto this list is because the character made just one appearance in the X-Men movie universe, despite being such a memorable addition to the roster. Alan Cumming brings great depth and humanity to the devoutly religious and guilt-ridden mutant, as well as getting the chance to kick some serious ass. Nightcrawler should have been made into a core member of the big-screen X-Men given the overwhelmingly positive response to the character, but the role was reduced to a brief cameo in the shooting script for Brett Ratner's The Last Stand before being removed entirely, due to a lengthy make-up process that was deemed unnecessary for such a minor amount of screentime. Instead of bringing one of the more complex and interesting characters back into the fold, Nightcrawler's existence was just quietly ignored and X-Men 3 was populated with dull and forgettable mutants like Callisto, Multiple Man, Arclight and Kid Omega instead.
I don't do social media, so like or follow me in person but please maintain a safe distance or the authorities will be notified. Don't snap me though, I'll probably break. I was once labelled a misogynist on this very site in a twenty paragraph-long rant for daring to speak ill of the Twilight franchise. I stand by what I said, it's crap.