The titular crazy ex-girlfriend behind The CW's series of the same name is heading into her crazy last season, and the creative team is raking in guest stars to add to their fourth and final run.

Crazy Ex-Girlfriend, starring comedian Rachel Bloom, has already welcomed a number of guests on previous seasons, from Dr. Phil to Brittany Snow (Pitch Perfect).

But this time, co-creator and showrunner Aline Brosh McKenna put out the call for famous fans of Crazy Ex-Girlfriend to come forward “and we will try to find a part for you!” She tweeted out the message Aug. 16, following guest appearances by Nia Vardalos and Patton Oswalt.

If you’re famous and a fan of #crazyexgirlfriend, tweet about the show or tweet at me or ?@Racheldoesstuff? and we will try to find a part for you! That’s how we met ?@NiaVardalos? (below on set) and ?@pattonoswalt?!!! pic.twitter.com/sxJ2tcuSGs — Aline Brosh McKenna (@alinebmckenna) August 16, 2018

Tan France of Queer Eye fame answered McKenna’s call this time. On Aug. 25, the fashion icon filmed an episode for the show, posting a picture of his trailer with his character’s name, Fett.

France wrote, “I did something I would have never dreamt possible. I filmed a scripted scene!” and added that “I couldn’t feel more honored and grateful.” His episode airs in November, after the season premiere Oct. 12.

Another big new face to appear on the musical comedy is Pitch Perfect’s Skylar Astin, who will replace Santino Fontana as Greg (a move that Bloom says gives her a "creative boner").

Below, Bloom breaks down the guest stars and the recasting for The Hollywood Reporter.