Yes, that's Cheyenne Jackson as Danny (as a police officer) in this scene from 30 Rock. It's courtesy of the episode "Black Light Attack!."

30 Rock Season 4 Episode 10 Quotes

[on his teeth] You'll have to ask the fella who whittled 'em for me!


For four years I've had to make do with what passes for men around here, with their untucked shirts, boneless faces, their Stars, both Wars and Trek.