Nick Offerman, who plays Frederick, is also the voice that says "Fremulon", the name of the show's television production company, at the end of each episode.
The hospital where Sharon gives birth is Brooklyn Methodist Hospital, the same hospital where Charles gets taken after being shot in the behind in the episode Christmas (2013).
Dressed as a turkey, Boyle twice says "gobble, gobble" even though it was established during Boyle Bingo that he insists on saying gobble three times.
Gina mentions clicking a link saying that "'Balloon Boy' grew up hot", likely referring to the Balloon boy hoax from 2009.