Michael Sheen character David Frost
Frank Langella character Richard Nixon
Kevin Bacon character Jack Brennan
Sam Rockwell character James Reston Jr.
Matthew Macfadyen character John Birt
Oliver Platt character Bob Zelnick
Rebecca Hall character Caroline Cushing
Toby Jones character Swifty Lazar
Andy Milder character Frank Gannon
Kate Jennings Grant character Diane Sawyer
Gabriel Jarret character Ken Khachigian
Jim Meskimen character Ray Price
Patty McCormack character Pat Nixon
Geoffrey Blake character Interview Director
Clint Howard character Lloyd Davis
Rance Howard character Ollie
Gavin Grazer character White House Director
Simon James character Frost Show Director
Eloy Casados character Manolo Sanchez
Jay White character Neil Diamond
Wil Albert character Sammy Cahn
Keith MacKechnie character Marv Minoff
Penny L. Moore character Lady with Dachshund
Mark Simich character Hugh Hefner
Janneke Arent character Frost's Female Assistant
Jenn Gotzon Chandler character Tricia Nixon
Eddie Napolillo character Smith Crew (uncredited)