Guest Stars Gavin McHugh as Christopher Diaz Tracie Thoms as Karen Wilson Devin Kelley as Shannon Diaz Joseph Lyle Taylor as Marty Collins Jama Williamson as Det. Anita Mercer Max Adler as Sam Christian Clemenson as Franklin Javier Grajeda as Chief Alonzo Jenica Bergere as Nina Terry Woodberry as Dt. Lonnie Wash Co Starring Michael Whaley as Commander Bowman Carole Gutierrez as Luann Samantha Cutaran as Female Uni Cop David Douglas as Billy Stefan Ionesco as CSI Tech Kevin D'Arcy as Harrison