Aline Brosh McKenna is stepping in front of the camera.

TheCrazy Ex-Girlfriendco-creator will guest star in the first episode of the comedys fourth and final season.

I play a prosecutor, Brosh McKenna tells EW.

I Want To Be Here

Robert Voets/The CW

I got to participate in picking out a pretty fabulous outfit.

we do know that the role was the idea of Brosh McKennas fellow co-creator Rachel Bloom.

Shes always wanting to put me out there in a great way so it was fun.

EW has an exclusive first look at Brosh McKennas on-screen role below.

Crazy Ex-Girlfriendreturns Friday, Oct. 12 at 9 p.m.

ET on The CW.