Plays: Quinn Perkins, murder suspect-turned-gladiator-in-training who's coming into her own as Huck's eager apprentice.
Where you've seen her: In guest roles on Private Practice and Grey's Anatomy.
Office romance: Lowes had a chance to work with her real-life husband, Adam Shapiro, when he played Quinn's ill-fated boyfriend in a flashback in a January episode. ''It was so huge for our families,'' recalls Lowes, 30. ''We'd just gotten married six months [prior].... He was on cloud nine.''
Her scandalous secret: She's plotting revenge against Josh Malina, who has launched a prank war on set. His crimes? Covering her door in shaving cream and leaving a voicemail for her while posing as a tabloid reporter who wanted intel on the cast. ''We have in the works a major prank to get him back,'' she says.
What's next? Quinn will put her investigative skills to work. ''She's definitely growing a pair of cojones.''