Dr Hibbert has two brothers.

Iam currently watching all the old simpsons episodes I have on DVD. Now people are obviously quite familiar with dr Hibbert and bleed gums murphy being long lost brothers. (As in short clip )

But I also came across his identicle twin from the episode where homer is looking for his brother herb.
http://images3.wikia.nocookie.net/__cb20110730091149/simpsons/images/c/c3/Unnamed_twin.jpg
I don't know his name, all I know is he works at the foster home in Capitol city.

Lol sorry for size of pic