Found It!

Presenting Stephen Colbert's 'Black acquaintance Alan'!

What wikipedia says about Alan:
Whenever Colbert discusses racial issues, he often asks that a picture of him and his African-American co-worker Alan be shown on screen. Colbert sometimes refers to Alan as "Alan, my black friend, Alan". He first appeared on Dr. Martin Luther King, Jr. Day when Colbert was complaining about having to work on that holiday, assuming that Alan was angry about it as well, which he wasn't. Recently reduced in status from "friend" to "acquaintance", after Alan was spotted at a protest rally. This character is played by stand-up comedian Jordan Carlos.

Read the rest of the hilarious wikipedia entry to enjoy the frightening breadth of the Colbert (Cohl-bear) oeuvre.