Erin Foster was "not allowed to talk to anybody" when she had a guest role on 'The O.C.'

Speaking on her and sister Sara Foster's 'The World's First Podcast', she told guest Adam Brody: "I was not allowed to talk to anybody on the set of The OC. I have one memory of someone coming into the makeup trailer and being like, 'I'm ordering Nobu, who wants some?' And they just walked right past me, like I was not allowed to put an order in."

Adam quipped: "I don't think I ever got Nobu on 'The O.C.'."

Erin created Adam's new TV show 'Nobody Wants This' and the 44-year-old actor admitted he had no idea they had previously worked together, but she didn't hold it against him as none of her "truly bad" scenes were with him.

He said: "I assumed it was Sara."

Erin laughed: "I don't know what's the bigger insult, not knowing I was on it or thinking it was Sara."

She then added: "I was trying to be an actress. I had red hair and a different nose, so you don't need to feel bad about not remembering who I was.

"We never worked together and I was bad. Like, I was truly bad in the show, and I had very minimal scenes and none of them were with you, they were all with Mischa, I think, and [Cam Gigandet as Kevin Volchek], the guy who played my boyfriend."

Erin had deliberately kept her role from Adam as he didn't want him to "lose respect" for her.

She said: "I really didn't want you to find out about this because I didn't want you to lose respect for me being a loser guest star on 'The O.C.' when I was trying to get you to trust me with this piece of art that we were gonna do together."

Her guest replied: "There's so many people that I've worked with that have usurped me. And now you're one of them."