Katie Cassidy will be guesting on The CW's Whose Line Is It Anyway? on August 31.

Katie Cassidy is the featured guest on the Wednesday, August 31 episode of Whose Line Is It Anyway?

We don’t have any pictures yet, but here is how they describe it:

A COMEDY HERO — WITH GUEST STAR APPEARANCE BY KATIE CASSIDY (“ARROW”) — Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Brad Sherwood, put their comedic skills to the test through a series of spontaneous improv games that are prompted only by random ideas supplied by the studio audience. The four performers must use the little information they have and their wild imaginations to depict different characters and an array of scenes, as well as perform songs. After each round of improvisation, Aisha will dole out points to our four performers and declare a winner at the end of every episode. Directed by Geraldine Dowd (403). Original airdate 8/31/2016.