Guest Stars Andrew Rannells as Elijah Krantz Ebon Moss-Bachrach as Desi Greta Lee as Soojin Jessica Williams as Karen Natalie Morales as Clementine Barrios Amir Arison as Kevin Mimma Michael Zegen as Joe Jennifer Lyons as Janice Patti LuPone as Herself Louise Lasser as B.D. Jenny Mollen as Courtney Reed Birney as Peter Co Starring RJ Brown as Theatre Actor Emma Carroll as Open Mic Girl