Guest Stars Rachel Wilson as Dr. Nikki Renholds Krista Bridges as Kathleen Doyle Victor Garber as Garrison Steele Shaun Benson as Eric Howlett Hélène Joy as Tamara Bowler Peter Keleghan as Gearhardt Raoul Bhaneja as Javier Co Starring Aiden Flynn as David Purcell Courtney Brown as Ralfina