Guest Stars Gavin McHugh as Christopher Diaz Tracie Thoms as Karen Wilson Devin Kelley as Shannon Diaz Jama Williamson as Det. Anita Mercer Max Adler as Sam Joseph Lyle Taylor as Marty Collins Christian Clemenson as Franklin Jenica Bergere as Nina Terry Woodberry as Dt. Lonnie Wash Javier Grajeda as Chief Alonzo 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