 | Jonas Dassler als Dietrich Bonhoeffer |
 | Phileas Heyblom als Young Dietrich Bonhoeffer |
 | August Diehl als Martin Niemoller |
 | Moritz Bleibtreu als Karl Bonhoeffer |
 | Nadine Heidenreich als Paula Bonhoeffer |
 | Flula Borg als Hans Dohnanyi |
| Lisa Hofer als Sabine Bonhoeffer |
| Luise Landau als Young Sabine Bonhoeffer |
| William Robinson als Eberhard Bethge |
 | James Flynn als Dr. Rascher |
 | Greg Kolpakchi als Officer Ansel Knoblauch |
 | Simon Licht als Herman Punder |
 | Mark Wingett als Payne Best |
 | Evan Hart als Vassily Kokorin |
 | Vincent Franklin als Bishop Bell |
 | Patrick Mölleken als Walter Bonhoeffer |
 | Felix von Bredow als Rudolf-Christoph Von Gersdorff |
| John Akanmu als Louis Armstrong / Satchmo |
 | Tim Hudson als Winston Churchill |
 | Caroline Berry als Clementine Churchill |
| Marc Bessant als Hitler |
 | John Keogh als Professor Fosdick |
 | Muiris Crowley als Hoble (Lead Officer) |
 | Katharina Heyer als Else Niemoller |
 | Robert Besta als Rudolf Bamler |
| Christopher Reinhardt als Dr. Reinhard Krause |
| Jade Matthew als Christel Bonhoeffer |
 | Charlotte Martz als Young Christel Bonhoeffer |
| Leonard Treyde als Klaus Bonhoeffer |
| Victoria Grueber als Susanne Bonhoeffer |
| Mattis Feldman als Jan Niemoller |
| Tomer Barash als Moses Kiefer |
| Scott Winters als Innkeeper |
 | Mark Huberman als Samuel |
| Arne Gottschling als Another Prisoner |
| Toussaint Colombani als Swiss Guard 1 |
 | Matthijs van de Sande Bakhuyzen als Swiss Guard 2 |
 | James Craze als Bus Driver |
 | Andy Kellegher als Gestapo At The Buchenwalde |
| Charles De Meester als Prisoner 2 |
| Kurt Erickson als Church Goer 1 |
 | Dagmar Döring als Church Goer 2 |
| Andreas Berger als Grim Gestapo #1 |
 | Tobias Schäfer als Gestapo Officer Of The Youth |
 | Jörg Westphal als Gestapo At The Gallows |
| Jordan McGuinness als SS Officer 1 |
| Antoine Van Lierde als Rector |
| Rachel Lally als Wife |
 | Johannes Heinrichs als Grabbing Man |
 | Arthur Riordan als Publican |
 | David Jonsson als Frank Fisher |
 | Milton Welsh als Ludwig Müller |
 | Roman Schomburg als Ulrich Wagner |
 | Joseph Palmer als Man in Sedan |
 | Derek Carroll als Gestapo |
 | Marcus Lamb als Colonel Tresckow |
| Todd Komarnicki | Director |
| Todd Komarnicki | Writer |
| Thomas Bassett | Associate Producer |
| Richard Caleel | Executive Producer |
| Grainne Carroll | Line Producer |
| Jonathan T. Coleman | Co-Producer |
| Vivienne De Courcy | Executive Producer |
| Max Hatfield | Production Executive |
| Chloe Kassis-Crowe | Co-Producer |
| Todd Komarnicki | Producer |
| Valérie Lardinois | Co-Producer |
| Christophe Mazodier | Co-Producer |
| Sarada McDermott | Executive Producer |
| Jean-Jacques Neira | Co-Producer |
| Mark O'Sullivan | Executive Producer |
| William Pruss | Line Producer |
| John B. Scanlon | Executive Producer |
| John Mathieson | Director of Photography |
| Blu Murray | Editor |
| John Hubbard | Casting |
| Ros Hubbard | Casting |
| Kadija Leclère | Casting Director |
| John Beard | Production Design |
| Conor Dennison | Supervising Art Director |
| Thierry Poulet | Art Direction |
| Séverine Closset | Set Decoration |
| Virginie Defauwes | Set Decoration |
| Lindy Bishop | Makeup Supervisor |
| Willow Bunton | Hairstylist |
| Alma Casal | Makeup Supervisor |
| Clarisse Domine | Hair Department Head |
| Monika Huebert | Assistant Makeup Artist |
| Ana Lozano | Prosthetics |
| Madlen Mierzwiak | Makeup Supervisor |
| Laurent Hanon | Production Manager |
| Jeanne Diligent | Third Assistant Director |
| Robert Grayson | First Assistant Director |
| Jean-Christophe Muller | Crowd Assistant Director |
| Michael Pontvert | Second Assistant Director |
| Charline Raes | Second Assistant Director |
| Gary Cagney | Art Department Coordinator |
| Flavio Capetola | Property Buyer |
| Vincianne Gouders | Painter |
| Nemo Grootaert | Painter |
| Sebastien Oschmann | Construction Buyer |
| Berengere Wiot | Seamstress |
| Yves Bémelmans | Sound Engineer |
| Quentin Van Kerckhove | Boom Operator |
| Zakaria Kadri | Assistant Sound Engineer |
| Jean-Christophe Bourgeois | Special Effects Supervisor |
| Garrett Honn | Visual Effects Supervisor |
| Olivier Bisback | Stunt Coordinator |
| Florent Bagard | Best Boy Grip |
| Daniel Barnwell | Second Assistant "A" Camera |
| Steven Braine | Second Assistant "A" Camera |
| Marcel Bulterijs | Gaffer |
| Fionn Comerford | Camera Operator |
| Alanis Danet | Grip |
| Amaury Duquenne | First Assistant "B" Camera |
| Gastone Ferrante | Digital Imaging Technician |
| Eoghan Fleming | First Assistant "A" Camera |
| Alan Flynn | Camera Trainee |
| Florent Freyens | First Assistant "A" Camera |
| Marc Freyens | Grip |
| Andrew Gallivan | Camera Trainee |
| Sean Green | Second Assistant "B" Camera |
| Sarah Hierneaux | Video Assist Operator |
| Mauzé Jonathan | Grip |
| Nicolas Mambourg | Key Grip |
| Fred Martin | Camera Operator |
| Nathan Meynsbrughen | Grip |
| Darragh O'Flanagan | Camera Trainee |
| Lili Oufkir | Second Assistant "B" Camera |
| Sam Phillips | Key Grip |
| Antoine Piccarelle | Grip |
| Chris Renson | "A" Camera Operator |
| Leo Robeet | Grip |
| Thibault Sellier | Grip |
| Gary Smith | Best Boy Grip |
| Frederique Timperman | Grip |
| Martial Viel | Grip |
| Des Whelan | "A" Camera Operator |
| Thomas Wilski | Drone Operator |
| Tifenn Morvan | Costume Supervisor |
| Patricia Saive | Costume Supervisor |
| Gaëtane Paulus | Assistant Costume Designer |
| Kevin Murray | Assistant Editor |
| Pauline Boury | Assistant Location Manager |
| Hamon Damien | Unit Manager |
| Charlotte Desmaret | Location Manager |
| Julien Glasmacher | Location Manager |
| Jeremy Morgan | Location Assistant |
| Henri Snyers | Location Assistant |
| Nick Angel | Music Supervisor |
| Sarah Bridge | Music Supervisor |
| Liz Elizabeth West | Script Supervisor |
| Paul Cullen | Transportation Captain |
