USA Today has two more Guardians of the Galaxy photos, highlighting Michael Rooker as the blue skinned Yondu and Sean Gunn as his first mate Kraglin. Check out the grisly pair of space pirates, and then read on for more information about this dubious duo as Michael Rooker helps explain what Yondu, a sort-of surrogate father to Star-Lord, is all about.Director James Gunn wrote the role of Yondu specifically for Michael Rooker, an extraterrestrial with blue skin, red eyes, gold teeth and a metal Mohawk.