Tracker brought in someone new to fill Velma's place after season 3 introduced several surprising cast exits. During the Sunday, November 2, episode of the hit CBS series, Reenie (Fiona Rene) interviewed several candidates to take over for Velma (Abby McEnany) before landing on a student named Mel. The newcomer was a fan of Reenie's career, expressed interest in her work with Colter (Justin Hartley) and surprised Us with a revelation about her mother's unsolved murder. The dynamic continued to play out after Mel was officially hired, which is when she met Randy (Chris Lee).