Former “OC” star Mischa Barton says she’d be up for a cast reunion – though she says she’d have to play a ghost or a zombie.

The Irish-American starlet, who’s currently featured in the new CW series “The Beautiful Life: TBL,” told MTV News that because her “OC” character Marissa Cooper is dead, it’d be tough to do a reunion.

"I think the main reason that I don’t see [a reunion] happening is Marisa's dead," she said. “So unless she's coming back as a ghost, which I'm totally down to do. I think she should come back as a zombie."

As “down” as Barton might be, she’s not sure that her co-stars Rachel Bilson, Adam Brody and Benjamin McKenzie would be on board.

"I don't think that any of us are looking to do an 'O.C.' reunion," the actress, who recently did a stint in a psychiatric ward, said. "I mean not that I would be totally against it. But, I just don't think that we'd be able to get one together. Like I don't think we'd be able to get everyone back in there. But if we did it would be cool. It definitely would be really different."

Mischa as a Marissa Cooper zombie? “Different” is an understatement.

Mischa Barton as Marissa Cooper in "The OC"