JPI

Watch out! Marcia Wallace is coming to shake things up in Genoa City.

Good news! Emmy award-winning actress Marcia Wallace is joining the cast of "The Young and the Restless."

You know Marcia, right? She's best known as the voice of Bart's teacher, Mrs. Krabappel, on "The Simpsons," and we also totally loved her as Carol Kester on "The Bob Newhart Show" back in the day.

She'll be playing a woman named Annie Wilkes who poses a possible danger to Katherine Chancellor (Jeanne Cooper). Hmm ... does that mean she's going to be a total villain? A raging psychopath? How fun would that be to watch?

We're not exactly sure what Marcia's new character has in store for Genoa City -- but we definitely can't wait to find out.

Be sure to tune in for her big debut on Monday, February 16th.

Who are some of your all-time fave "Y&R" villains?