Guest Stars John Boyd as Special Agent Stuart Scola James Chen as Ian Lim Cindy Cheung as NYPD Rep Ann Sasha Alexander as Valerie Caldwell Guy Lockard as Len Barker Fernando Chien as Ray Zhao MaYaa Boateng as Sasha Harris Nicholas Baroudi as Christopher Wharton Co Starring Carmen Lamar Gonzalez as Bomb Tech Carla Flores Paul Hickert as Bill Sullivan Richard Andrew Torres as Capitol Police Officer Max Wolkowitz as Public Affairs Staffer Terron Jones as Wayne Simmons Jacob H. Knoll as Daniel Harley Greg Brostrom as Alex Nelson Jennifer Blood as Gabrielle Delgado Sarah Nina Hayon as Paula Alvarez