Carla Gugino Dr. Molly Anne Caffrey Actor Charles S. Dutton J.T. Baylock Actor Brian Van Holt Cavennaugh Actor Rob Benedict Lucas Pegg Actor Brent Spiner Dr. Nigel Fenway Actor Peter Dinklage Arthur Ramsey Actor Diane Venora Guest Star David Hornsby Guest Star Amanda Fuller Guest Star Jake Abel Guest Star Maurice Godin Guest Star Montae Russell Guest Star David Gautreaux Guest Star Michael Papajohn Guest Star Shane Conrad Guest Star Mark Berry Guest Star Michael Bentt Guest Star Maura Claire Barclay Guest Star Larry Thomas Guest Star Jeff Cockey Guest Star Brannon Braga Executive Producer, Writer David Heyman Executive Producer David S. Goyer Executive Producer Bill Eagles Director John Showalter Director David Jackson Director Norberto Barba Director Amy Berg Writer Tim Matheson Director Bill Norton Director Paul Shapiro Director Anne McGrail Writer André Bormanis Writer Bragi F. Schut Writer Barbara Nance Writer Andrew Colville Writer Michael Sussman Writer Thomas J. Wright Director Dan O'Shannon Writer