Anna Torv Actor Joshua Jackson Actor John Noble Actor Lance Reddick Actor Kirk Acevedo Actor Mark Valley Actor Blair Brown Actor Jasika Nicole Actor Ptolemy Slocum Mark Young Guest Star Yul Vazquez George Guest Star David Vadim Michael Kelly Guest Star Susan Misner Tess Amaral Guest Star Tom Riis Farrell Gregory Worth Guest Star Cindy Katz Charlotte Guest Star Carlo Alban FBI Tech Agent Guest Star Juliet Pritner Forensics Agent Guest Star Catia Ojeda Melanie Guest Star Robert Arcaro Brian Cole Guest Star Harry Sutton Jr. Paul Guest Star Dianne Zaremba Nurse Guest Star Matthew Martin Agent 1 Guest Star Darby Lynn Totten Agent 2 Guest Star Jacqueline Beaulieu Nina's Assistant Guest Star Ed Bergtold Forensic Photographer Guest Star Jennifer Butler CSU Investigator Guest Star Mike Cerveris The Observer Guest Star J.J. Abrams Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Jeff Pinkner Executive Producer Bryan Burk Executive Producer