When Kevin leaves a message on Kate's voicemail about moving to New York, he mentions Jason Momoa. Justin Hartley, who plays Kevin, starred as Arthur Curry/Aquaman in Aquaman (2006), while Momoa played Arthur Curry/Aquaman in Justice League (2017) and Aquaman (2018).
In the scene when Will and Randall have the disagreement and Randall sees a white couple come out to see what the issue was Sterling K. Brown ad-libbed the line "hey white people, just your friendly neighborhood black man."
A persistent theme in the storylines about Randall's childhood is the fact that despite their best intentions and love for their son, Jack and Rebecca Pearson repeatedly show that they are naive and ill-prepared for the realities of raising a black child. This episode presents one of the more subtle examples of the Pearsons' obliviousness on this matter: until they change his name from Kyle to Randall, they had given their three children names that all started with Ks, meaning that together their children's initials were KKK.
This is the second episode in a row to refer to the Broadway musical Hamilton. Ron Cephas Jones (William) is the father of Jasmine Cephas Jones, who originated the roles of Peggy Schuyler/Maria Reynolds in the musical.