'The O.C.' Star Mischa Barton Joins the Cast of 'The Hills' Reboot

The revival, set to premiere in 2019, will reunite original cast members, alongside their children, friends and some new faces

Mischa Barton is returning to the small screen — and making her reality TV debut.

A source confirms to PEOPLE that the actress has joined the cast of The Hills reboot. MTV later confirmed the news, too.

Though she never appeared on the original series, which aired for six seasons from 2006-2010, Barton, 32, has a special connection to the MTV show. At 17, she was catapulted to fame for her starring role as Marissa Cooper on Fox’s The O.C., which premiered in 2003 and became a cult phenomenon almost overnight. The O.C. inspired MTV’s Laguna Beach: The Real Orange County, which eventually spun off into The Hills.

Celebrity Sightings in New York City - July 14, 2017
Jackson Lee/GC Images

The Hills: New Beginnings was announced in August, when a handful of cast members reunited on the red carpet at the MTV Video Music Awards. The revival, set to premiere in 2019, will reunite original cast members, alongside their children, friends and some new faces, and follow their personal and professional lives while living in Los Angeles.

Confirmed stars include Heidi and Spencer Pratt, Brody Jenner, Audrina Patridge, Whitney Port, Jason Wahler, Stephanie Pratt, Justin Bobby and Frankie Delgado.

MTV Video Music Awards, Arrivals, New York, USA - 20 Aug 2018
Kristina Bumphrey/StarPix/REX/Shutterstock

Missing in action? Lauren Conrad and Kristin Cavallari.

“She’s in a different place in her life,” a source told PEOPLE of Conrad, 32, who has long closed the door on reality TV as she focuses on her family and multiple brands.

“But she wants everyone to enjoy themselves,” the source added. “She wishes everyone the best.”

RELATED VIDEO: MTV Announces The Hills Reboot at the 2018 VMAs

As for Cavallari, 31? An insider told PEOPLE at least one reason for her absence is that the reboot would conflict with her current contract at E!, which recently announced a second season of Very Cavallari, a reality show following her life with husband Jay Cutler in Nashville as she manages her brand, Uncommon James.

“She can’t do the show because she has a contract with E!” the source said. “But she’s still close with Heidi and Spencer and is excited for them.”

The Hills: New Beginnings is slated to premiere in 2019.

Updated by
Chelsea White
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Chelsea White is West Coast Digital Night News Editor at PEOPLE. As a senior news editor, she assigns and edits stories across verticals from crime to style. Prior to working at PEOPLE, the award-winning journalist has covered everything from the Oscars to violent gang wars for media outlets across the globe including The Daily Telegraph, Daily Mail, Star and Celebuzz as well as producing content for Us Weekly, Women's Weekly, Woman's Day, NW and OK! Magazine.

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