Jerry Adler and Alan Cummings both previously started on The Good Wife.
When Abbi and Ilana are in IKEA, just after having found Saul, you can briefly hear the "Leanne" song, which is an easter egg on Broad City that originated from season 4.
Various queens from Ru Paul's Drag Race appear in this episode, including Sasha Velour, Jiggly Caliente and Shangela. Season 12 queens Jan and Brita also briefly appear (this is before they first appear on Drag Race).
Saul's new dope shoes are Lebron 11 What The's