Gambit is a fan favorite because his iconic usage of playing cards as supercharged bombs. Any card trick is pretty cool, but no one would ever come close to matching Gambit's style.
Gambit was born Remy Lebeau in Louisiana, a fact that he is very proud of. He prefers to keep people at a distance probably due to his past. He was not only stolen when he was a baby, he was later exiled by the same clan that stole him because he accidentally killed his brother-in-law with his mutant powers.
He was forced to travel the world surviving as a thief until he ran into a distressed Storm. After saving her, he was accepted into the X-Men, and thus his story with the X-men began.