When Jack and Cerie review Zarina's email recipients list, one of the emails has "Fremulon" as a domain name. Fremulon is Michael Schur's production company which produces shows like Parks and Recreation, The Good Place, and Brooklyn Nine-Nine. Schur was also a writer on SNL, along with Tina Fey.
When Zarina introduces Jack (Alec Baldwin) to her "sex idiot" Ryan, she says, "Ryan, Jack. Jack, Ryan". One of Baldwin's best-known film roles was as agent Jack Ryan in The Hunt for Red October (1990).
One of the email addresses listed that Jack reads out is kentremendous@fremulon.biz. KenTremendous is Michael Schur's Twitter handle and pseudonym on the Fire Joe Morgan sports blog.
Jenna mentions a role in which she would play Kevin James's wife. Jane Krakowski would actually go on to play Kevin James's wife in Pixels (2015).
The song playing before Liz and Jenna start their comedy show for the crew is "I Wanna Be Your Joey Ramone" by punk-rock band Sleater-Kinney.