Elyes Gabel Walter O'Brien Actor Robert Patrick Agent Cabe Gallo Actor Katharine McPhee Paige Dineen Actor Eddie Kaye Thomas Toby Curtis Actor Jadyn Wong Happy Quinn Actor Ari Stidham Sylvester Dodd Actor Riley B. Smith Ralph Dineen Guest Star Brendan Hines Drew Guest Star Camille Guaty Megan O'Brien Guest Star Karolina Wydra Agent Simone Taylor Guest Star Christian Ochoa Lavernia Javier Guest Star Jimmy N. Roberts Andre Guest Star Melissa Stubbs Jules Guest Star Ronnie Gene Blevins Dirty John Tucker Guest Star Josh Clark Supervisor Elkins Guest Star Leith M. Burke Surgeon Guest Star Kristen Ariza Doctor Guest Star Frank Crim Foreman Guest Star Jeffrey A. Baker Floor Manager Guest Star Nikhil Shukla Forensic Guest Star Joe Ordaz Vasquez Guest Star Collin Hymes Partner Guest Star Andres Perez-Molina Guest Star Casey Adams Guest Star Celeste Creel Guest Star Angela K. Thomas Guest Star John Barbolla Hospital Security Guard Guest Star Nick Santora Executive Producer Nicholas Wootton Executive Producer Alex Kurtzman Executive Producer Roberto Orci Executive Producer Heather Kadin Executive Producer Walter O'Brien Executive Producer Scooter Braun Executive Producer Justin Lin Executive Producer Elizabeth Beall Writer David Foster Writer Mel Damski Director