CBS' hit missing persons drama Tracker season 3 will have two fewer cast members. Learn more about the departures below..

Justin Hartley's Tracker is easily CBS' biggest hit show - so why has it gone through three cast shakeups in just two seasons ...

Bobby (Eric Graise) serves as his computer expert, with Chris Lee recurring as Randy and filling in for him during Season 2 as well. Any legal help, as well as the source of a couple cases, comes from ...