What is the name of the blue guy from dragon ball?

The person Alan Cumming played in X-Men: United was named Nightcrawler. He is a German mutant who is Catholic and can transport himself, and others, from one location to another.

There are also other blue characters from X-Men. A couple of examples are Beast, Mystique (although female), Iceman (when using his powers), Anole (who can change), Caliban, and several others.