Adam Brody Wants The O.C. Spin-off.... The O.C. star Adam Brody has been in "mourning" since the teen drama was axed over poor viewing figures, but hopes to front a spin-off series.The actor, who played Seth Cohen in the show, loved his "geeky" character and wants to resurrect him in a new show.He says, "I'm still waiting for the spin-off. He needs one."