L-R - Barton and Bilson in 2005 Jeff Kravitz/FilmMagicActresses Rachel Bilson and Melinda Clarke are hoping for some clarity after The O.C. co-star Mischa Barton made damning claims about her time on the show. Bilson and Clarke chatted about their experiences on the modern soap opera during their Tuesday installment of their Welcome to the OC, B es! podcast. The two discussed Barton's E! interview, where she levied claims of being "bullied" on set and working to the point of exhaustion. Barton's character, Marissa, was killed off during the season-three finale. Both Bilson and Clarke say they spoke to each other "immediately" after the interview came out and were "confused" by their former co-star's claims. "We were just like, 'Wait, what?'," said Bilson, who starred as Summer. The actress also addressed Barton's statements about her character, Summer, being a last-minute addition to the cast