 | Rachel Weisz als Deborah Lipstadt |
 | Tom Wilkinson als Richard Rampton |
 | Timothy Spall als David Irving |
 | Andrew Scott als Anthony Julius |
 | Jack Lowden als James Libson |
 | Caren Pistorius als Laura Tyler |
 | Alex Jennings als Sir Charles Gray |
 | Harriet Walter als Vera Reich |
 | Mark Gatiss als Professor Robert Jan van der Pelt |
 | John Sessions als Prof. Richard Evans |
 | Nikki Amuka-Bird als Libby Holbrook |
 | Pip Carter als Anthony Forbes-Watson |
 | Jackie Clune als Heather Rogers |
 | Will Attenborough als Thomas Skelton Robinson |
 | Max Befort als Nik Wachsman |
 | Daniel Cerqueira als Sam Glass |
 | Laurel Lefkow als Storm Glass |
 | Elliot Levey als Roger Levy |
 | Helen Bradbury als Rachel Levy |
 | Jacob Krichefski als Rabbi Brenner |
 | Abigail Cruttenden als Janine Stone |
 | Hilton McRae als Judge John Trench |
 | Andrea Deck als Leonie |
 | Lachele Carl als Gloria |
| Edward Franklin als Simon |
 | Sally Messham als Meg |
 | Sean Power als Mitch |
 | Tom Clarke Hill als Sam Dixon |
| Amber Batty als Kate Kelland |
 | Paul Hunter als Judge's Clerk |
 | Amanda Lawrence als Court Usher |
 | Ziggy Heath als Gerald |
 | Todd Boyce als Reporter |
 | Sara Powell als Reporter |
| Nicholas Tennant als Angry Man |
 | Jeremy Paxman als Himself (Archive Footage) |
| Paul Bailey als Paralegal #1 (uncredited) |
 | Laura Evelyn als Maureen |
 | Ian Bartholomew als TV Historian |
| Odile Dicks-Mireaux | Costume Design |
| Guy Heeley | Executive Producer |
| Mick Jackson | Director |
| Russ Krasnoff | Producer |
| Dixie Chassay | Casting |
| Gary Foster | Producer |
| Dafydd Archard | Sound Re-Recording Mixer |
| Deborah Lipstadt | Book |
| Tomasz Nowak | Camera Operator |
| Vanessa Baker | ADR Voice Casting |
| Ishbel Beeson | ADR & Dubbing |
| Lisa Chugg | Set Decoration |
| Kim Armitage | Script Supervisor |
| Kira Kemble | Assistant Art Director |
| Isabella Odoffin | Casting Associate |
| Richard R. Reed | Visual Effects Supervisor |
| Andy Shelley | ADR Editor |
| Haris Zambarloukos | Director of Photography |
| Graham Sutton | Music Editor |
| James Sizemore | Music Editor |
| Andy Shelley | Dialogue Editor |
| Roy Chapman | Property Master |
| Maggie Rodford | Music Supervisor |
| Rob Farris | Digital Intermediate |
| Holly Smart | Costume Supervisor |
| Patrick Malone | Digital Intermediate |
| Balendu Kurup | Visual Effects Coordinator |
| Simon Diggins | ADR & Dubbing |
| Marese Langan | Makeup Department Head |
| Colin Gorry | Special Effects Supervisor |
| Christina Moore | Supervising Art Director |
| William Blunden | First Assistant Editor |
| Luke Redgrave | Camera Operator |
| Devendra Keni | Visual Effects Coordinator |
| Lucy Willis | Makeup Artist |
| Shaun Richards | Digital Intermediate |
| James Smith-Pryor | Rigging Gaffer |
| Stamos Triantafyllos | Steadicam Operator |
| Pranay Agarwal | 2D Supervisor |
| Andrew McAlpine | Production Design |
| Richard Morrison | Title Designer |
| Bill Higley | ADR & Dubbing |
| Hamish Doyne-Ditmas | Second Unit Director of Photography |
| Ava Jade Morgan | Casting Assistant |
| Dan Lowe | Gaffer |
| Fay McConkey | Visual Effects Producer |
| Susan Hegarty | Dialect Coach |
| David Hare | Screenplay |
| Howard Shore | Original Music Composer |
| Lucy Scarfe | Stand In |
| Justine Wright | Editor |
| Celia Duval | Co-Producer |
| Jeff Skoll | Executive Producer |
| Jonathan King | Executive Producer |
| Christine Langan | Executive Producer |
| Joe Oppenheimer | Executive Producer |
| Andrew Karpen | Executive Producer |
| Julian Spencer | Stunt Coordinator |
| James O'Donnell | Stunt Coordinator |
| Andy Smart | Stunts |
