Guest Stars Michel Gill as President Garrett Walker Reuel Pendleton as Staffer Peter Bradbury as Dalton McGinnis Danny Johnson as Hazmat Chief Candace Hammer as White Powder Intern Kim Tuvin as Congresswoman #1 John Leslie Wolfe as Congressman #1 J. Scott Watkins as Congressman #3 Greg Williams as Congressman #2 Emlyn Elisabeth Morinelli as Lieutenant Bob Paff as Congressman #4 Ashleigh Banfield as Herself Emily Dorsch as Emma Lane Uncredited Jeremy McLain as Walker Secret Service Ashley James as Underwood Assistant John Wells as Congressman Altorro Prince Black as Secret Service Agent Vincent De Paul as Belvedere Manager James Lewis as Hazmat Team Member