"Samira is an incredibly talented, thoughtful and exciting actress. When I worked on Orange Is the New Black I got to write the episode with Poussey's backstory, and we had such a good time that early on in writing this season of You're the Worst I hit on the random thought of having Samira play Gretchen's therapist," Falk told The Hollywood Reporter, who first reported the news. "It seemed like kind of a weird choice, given that she's younger, and on another show, but once it came to mind, the idea of casting anyone else bummed me out. So I didn't."

And now you're spoiler warning for Orange Is the New Black season four. Seriously, turn back now.

Season four of the Netflix dramedy ended with Wiley's character getting killed by a guard during a peaceful protest by the prisoners. The season finale featured Poussey flashbacks to her time first exploring Brooklyn. Viewers learned her crime was minimal, she was arrested with drugs with the intent to sell. Earlier in the season she bonded with celebrity lifestyle guru Judy King (Blair Brown) and asked her for a job when she got out.

Orange Is the New Black season four is now streaming. You're the Worst season three premieres August 31 at 10 p.m. on FXX.