Oh, yeah, White Collar! I'm sorry--I didn't know about Trust Me and I've never actually seen White Collar, and Elizabeth (the white wife of one of the white guys) is in so much fic I was certain she had to be a major character in the show. Hopefully.

There definitely does seem to be at least one CoC, but like you I don't know how often he or she or they might appear.

Unfortunately, I'm so much more interested in the 'team' shows like I wrote about that I don't even know how many or few other shows have Characters of Color in them. Of course, if the shows I do know about are any indication, than I'd say not many. :(