Who doesn't love Brian Williams? He's also great for a laugh on 30 Rock.
Jack and Frank enjoy some quality male bonding on 30 Rock.
Frank Rossitano wears many hats on 30 Rock. Literally, people.

30 Rock Quotes

Jenna: Oh, I'm not worried because I have something the other actors don't.
Liz: Don't say your sexuality.
Jenna: My sexuality.
Liz: Oh, god, Jenna! When has that ever worked?
Jenna: When has it not worked?!

Passing out and cursing on St. Patrick's Day. Is nothing sacred anymore?