iZombie type TV Show network The CW genre Crime

It’s the Veronica Mars reunion fans have been waiting for: EW has learned exclusively that Kristen Bell will guest-star on an upcoming episode of iZombie — but there’s a twist!

Bell, who worked with iZombie boss Rob Thomas on the Veronica Mars TV series and movie, will have a voice-over role in the eleventh episode of the second season, titled “Fifty Shades of Grey Matter,” which is slated to air on Jan. 26.

In the episode, things get interesting for Liv (Rose McIver) after she consumes the brain of a young librarian who was poisoned, and who also happened to secretly be an erotic fiction writer. Details on how Bell fits into the story are being kept under wraps.

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Bell — who has previously narrated Mars, as well as Gossip Girl, not to mention provided the voice of Anna in Frozen — joins several other Mars actors who have made their way to The CW zombie series, including Ryan Hansen, Percy Daggs III, David Starzyk, Adam Rose and Daran Norris.

McIver, whose iZombie character usually provides the narration on the show, shares the big news in the video below:

From now until our winter TV preview hits newsstands Jan. 15, EW is bringing you 25 scoops in 25 days. Follow the hashtag #25Scoops25Days on Twitter and Instagram to keep up with the latest, and check EW.com/25Scoops25Days for all the news and surprises.

iZombie returns Tuesday, Jan. 12 at 9 p.m. ET on The CW.