Justin Hartley's Tracker has gone through several shocking cast exits - and there could be more reconfiguration in the future. During an exclusive interview with Us Weekly, executive producer Elwood Reid defended the decision to shake up season 3 with Velma (Abby McEnany) and Bobby's (Eric Graise) surprise departures. "Justin has to carry so much of the show. So I don't want the other characters that are in the show to just be phone-a-friend where whenever he's in trouble, he just picks up the phone.