EXCLUSIVE: Mischa Barton and Ginger Zee to Appear on 'Dancing With the Stars' Next Season

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Next season's Dancing With the Stars roster is becoming clearer!

ET can confirm that Mischa Barton and Good Morning America meteorologist, Ginger Zee, have signed on for season 22 of the reality dance competition show.

WATCH: Derek Hough Not Returning for 'Dancing With the Stars' Season 22

Zee, who had her first child in December, will be paired with Val Chmerkovskiy, while Barton will dance with Artem Chigvintsev.

Other confirmed castmates include Full House's Jodie Sweetin, and Facts of Life star Kim Fields.

WATCH: 'Dancing With the Stars' Shakeup: Julianne Hough Out as a Judge

The full cast will be revealed during a live announcement on Good Morning America on March 8.

It was revealed this week that Derek Hough would not be returning next season after the dancing pro opened up to ET about his sister, Julianne, being out as a judge.

"I think she did three great seasons, and it's time for her to go," Hough explained in February. "She's got great things on the horizon, and she's doing great things. Len [Goodman]'s coming back, and so, you know, I think four judges feels a little redundant anyways, so I think it's the right thing to do."

Watch the video below.