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Alix Wilton Regan as Mary Shelley |
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Giullian Yao Gioiello as Percy Shelley |
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Philippe Bowgen as Lord Byron |
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Claire Glassford as Claire Clairmont |
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Lee Garrett as Dr. John Polidori |
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Shannon Spangler as Harriet Shelley |
| Camera | Oren Soffer | Director of Photography |
| Sound | Jon Cziner | Music |
| Sound | Brandon Bak | Foley Artist |
| Camera | Jasmine Chang | Second Assistant Camera |
| Production | Katie Lau | Production Assistant |
| Production | John Connor | Executive Producer |
| Production | Eric Tavitian | Producer |
| Camera | Max Batchelder | First Assistant Camera |
| Camera | Simeon Pol | Key Grip |
| Sound | David Thompson | Sound Mixer |
| Production | Claudia Burgi | Production Assistant |
| Crew | Candice McHugh | Post-Production Manager |
| Camera | Christoph Russi | Grip |
| Costume & Make-Up | Jasmine Murray-Bergquist | Assistant Costume Designer |
| Production | Caroline Daube Broughton | Production Assistant |
| Directing | Nora Unkel | Director |
| Sound | Brad Tigwell | Dialogue Editor |
| Lighting | Briana Man | Gaffer |
| Writing | Nora Unkel | Writer |
| Production | Robert Menzies | Producer |
| Crew | Jared Bloch | Legal Services |
| Visual Effects | Sam Javanrouh | Visual Effects Supervisor |
| Production | Dave Conlon | Executive Producer |
| Production | Gabriel Rosenstein | Producer |
| Sound | Ian Rodness | Sound Mixer |
| Costume & Make-Up | Veundja Katuuo | Wardrobe Assistant |
| Production | DJ Dodd | Executive Producer |
| Production | Bruce Fleming | Executive Producer |
| Editing | Scott Schuler | Editor |
| Directing | Lina Lansky | First Assistant Director |
| Directing | Jack Rucigay | Second Assistant Director |
| Camera | Avery Miritello | Grip |
| Production | Hana Kim | Production Assistant |
| Production | Devin Shepherd | Producer |
| Art | Madeline Wall | Production Design |
| Costume & Make-Up | Suzzy Kotoku | Assistant Makeup Artist |
| Production | Natalie Wrubleski | Production Assistant |
| Production | Frédéric Fiore | Producer |
| Art | Deidra Catero | Art Direction |
| Costume & Make-Up | Jennifer Stroud | Costume Design |
| Sound | Shacora Mitchell | ADR Mixer |
| Camera | Jessica DeNoia | Still Photographer |
| Directing | David B. Jacobs | Script Supervisor |
| Production | Dan Wong | Executive Producer |
| Costume & Make-Up | Bella Armenti | Assistant Makeup Artist |
| Editing | Mark Driver | Digital Intermediate Colorist |
| Production | Michelle Chang | Attorney |
| Production | Sean Pope | Attorney |
| Production | Paul Moyer | Executive Producer |
| Costume & Make-Up | Mickayla Pence | Key Makeup Artist |
| Sound | Deanna Marano | Sound Effects Editor |
| Crew | Drew Leary | Stunt Coordinator |
| Visual Effects | Helen Thach | Visual Effects Supervisor |
| Production | Madeleine Shepherd | Production Assistant |
| Editing | Blair Slater | Assistant Editor |
