After chatting with my roommate a bit I decided I'm writing a short fic with biracial Sam and Dean Winchester. Collabing with a fanartist would be pretty awesome but not necessary; I plan on pointing at real people and saying, "That's what s/he looks like."

Question is, can someone help me find an approximate real life person for biracial Sam? I'm looking at Daniel Henney for Dean and Kim Yunjin for Mary (although that's just for me; obviously she won't be in the fic), but I'm drawing a major blank at good ol' Sammy. Help?