Kevin Spacey as Ron Klain

Bob Balaban as Ben Ginsberg

Ed Begley Jr. as David Boies

Laura Dern as Katherine Harris

John Hurt as Warren Christopher

Denis Leary as Michael Whouley

Bruce McGill as Mac Stipanovich

Tom Wilkinson as James Baker

Bruce Altman as Mitchell Berger

Jayne Atkinson as Theresa LePore

Gary Basaraba as Clay Roberts

Derek Cecil as Jeremy Bash

Eve Gordon as Monica Klain

Marcia Jean Kurtz as Carol Roberts

Mitch Pileggi as Bill Daley

Raiko Bowman as Whouley's Aide

Kevin Porter as Secret Service Agent (uncredited)

Brent Mendenhall as George W. Bush

Chris Cox as George W. Bush (voice)

Grady Couch as Al Gore

Molly Howe as Alana Alibsoo (uncredited)