Details on a new troublemaker, plus other scoop, is trickling in for Veronica Mars fans. Our guy at the San Diego Comic-Con reports that Angel alumna Charisma Carpenter's character will be "a bitch in a bikini," as a sexy stepmother to brothers Dick and Beaver Casablancas. Also, in the second-season premiere, look for Keith to appear on Larry King's show to promote his book about Lilly's murder. And as for Veronica herself, well, let's just say that since she's back hanging with the oh-niners, she will tick off tried-and-true pals like Weevil.