What shows work is the stand-up comedian he played St. Geegland in the Kroll Show best known for?
The Oh, Hello Show:  The show centers on Gil Faizon (Kroll) and George St. Geegland (Mulaney), elderly men from the Upper West Side of Manhattan who are known for their turtlenecks, misinformed beliefs, and tendency to say "Oh, hello" in unison. John Mulaney:  He is best known for his work as a writer on "Saturday Night Live" and as a standup comedian with standup specials "The Top Part", "New in Town", and "The Comeback Kid".
i don't know