Louise Thornton
Bruno Gianelli
Helen Santos
Sheila Brooks
Self
Senator Arnold Vinick
Annabeth Schott (credit only)
C.J. Cregg (credit only)
Kate Harper (credit only)
Leo McGarry (credit only)
Josh Lyman (credit only)
Matthew Santos
President Josiah Bartlet (credit only)
Secret Service Agent (uncredited)
Debate Audience Member (uncredited)
Santos Secret Service (uncredited)
Debate Heckler (uncredited)