Nightcrawler was born in Germany to shape-shifting mutant, Mystique. He has entered the U.S. illegally when he was drugged and trafficked by circus owner Amos Jardine, as a member of the X-Men, and while undertaking priesthood studies in Brooklyn, NY.
The Thundercats, a family of cat-like humanoid aliens from the planet Thundera, are known to have entered the U.S. illegally when they saved the world with Superman from Mumm-Ra and his Mutants in a 2004 DC crossover.
Wolverine was born in Alberta, Canada sometime during the late 19th century. He is a Canadian citizen with possible dual citizenship in Japan. He has entered the U.S illegally often over the centuries with most recently having done so as a member of the X-Men and the Avengers.
In the end, no matter how you land on the issue of illegal immigration, I think we can all agree that it's lucky that Wolverine never ended up in a crazy place called Arizona. To view the full slideshow of Neil Riva's work, please click here.