<Li> Malcolm - Jamal Warner as Lieutenant Chuck Cooper (season 2--) </Li> <Li> Ever Carradine as Sharon Beck, Rusty's biological mother (season 3--) </Li> <Li> Bill Brochtrup as Dr. Joe Bowman, Rusty's therapist, an occasional consultant with the Major Crimes unit (season 2--) </Li> <Li> Rene Rosado as Gustavo Wallace, Rusty's boyfriend (season 4--) </Li>

Who plays the new chief on major crimes