Rachel Weisz
Deborah Lipstadt

Tom Wilkinson
Richard Rampton

Timothy Spall
David Irving

Andrew Scott
Anthony Julius

Jack Lowden
James Libson

Caren Pistorius
Laura Tyler

Alex Jennings
Sir Charles Gray

Harriet Walter
Vera Reich

Mark Gatiss
Professor Robert Jan van der Pelt

John Sessions
Prof. Richard Evans

Nikki Amuka-Bird
Libby Holbrook

Pip Carter
Anthony Forbes-Watson

Jackie Clune
Heather Rogers

Will Attenborough
Thomas Skelton Robinson

Max Befort
Nik Wachsman

Daniel Cerqueira
Sam Glass

Laurel Lefkow
Storm Glass

Elliot Levey
Roger Levy

Helen Bradbury
Rachel Levy

Abigail Cruttenden
Janine Stone

Hilton McRae
Judge John Trench

Andrea Deck
Leonie

Lachele Carl
Gloria

Sally Messham
Meg

Sean Power
Mitch

Tom Clarke Hill
Sam Dixon

Paul Hunter
Judge's Clerk

Amanda Lawrence
Court Usher

Ziggy Heath
Gerald

Todd Boyce
Reporter

Sara Powell
Reporter

Nicholas Tennant
Angry Man

Jeremy Paxman
Himself (Archive Footage)

Paul Bailey
Paralegal #1 (uncredited)

Laura Evelyn
Maureen

Ian Bartholomew
TV Historian