, Kelli Giddish is leaving the long-running NBC crime procedural. The actress, who has played Det. Amanda Rollins since 2011, took to Instagram to confirm that season 24 will be her last as a full-time cast member. “I wanted to address the chatter I’ve seen online and let everyone know that this will, indeed, be my last season on ‘Law & Order: SVU,’” Giddish wrote.