 | Daniel Gillies als Robert Durst |
 | Katharine McPhee als Kathleen “Kathie” McCormack |
 | John Glover als Seymour Durst |
 | Fiona Vroom als Eleanor Schwank |
 | Ryan Robbins als Jim |
 | Jesse Hutch als Henry Luttman |
 | Martin Donovan als Detective Struk |
 | Blair Penner als Douglas Durst |
 | Kwesi Ameyaw als Edward Michaels |
 | Ella Cannon als Mary McCormack |
 | Kyla Mary Wise Halliday als Gabrielle Colquitt |
 | Aidan Kahn als Marcel |
 | Jason Schombing als Joe Becerra |
 | Michael Dickson als Professor |
 | Bree Woodill als Ellen Strauss |
 | Frances Flanagan als Ann McCormack |
 | Iris Paluly als Susan Berman |
 | Grace Wan als Pedestrian |
 | Graeme Duffy als Nick Scoppetta |
 | Kurt Teixeira als Mark Bowen |
 | Ash Lee als Lieutenant Robert Gibbons |
| Nailya Red als Prudence Farrow |
| Jessica Smith als Gilberte Najamy |
| Ragnarok Watson als Norwegian Elkhound |
 | Gerry South als Tim Martin |
 | Adam Kozlick als Clerk |
| Chilko Tivy als Robin Hill |
| Vaughan Winmill als Bar Tender |
 | Leandro Guedes als Patient |
| Sarah Carson als Sharon McCormack |
| Yves Simoneau | Director |
| Bettina Gilois | Screenplay |
| Matt Birkbeck | Book |
| Moshe Bardach | Line Producer |
| Linda Berman | Executive Producer |
| H. Scott Salinas | Music |
| Adam Sliwinski | Cinematography |
| Sylvain Lebel | Editor |
| Susan Edelman | Casting |
| Catharine Falcon | Casting |
| Bim Narine | Casting |
| Bob Bottieri | Production Design |
| La Vonne Girard | Set Decoration |
| Julia Bettencourt | First Assistant Director |
| Chris Garbasauskas | Second Assistant Director |
| Roderick Dryden Morrison | Assistant Director |
| Kailyn Olsen | Assistant Director |
| Carmelo Bottieri | Graphic Novel Illustrator |
| Thomas Hamilton | Set Dressing Manager |
| Devin Hamm | Set Dresser |
| Maeve Hickey | Set Dresser |
| Abbie Jenkins | Set Dresser |
| Cezary Kolsut | Set Dresser |
| Jake Kowalski | Set Dresser |
| Ross Langill | Set Dresser |
| Frazer MacLean | Set Dresser |
| Vicky Monterrosa | Set Dresser |
| Rachel Movold | Set Decoration Buyer |
| Roden San Antonio | Prop Designer |
| Julia Schnitman | Set Dresser |
| Ginna Scotto | Set Dresser |
| Jeff Hilman | Boom Operator |
| Aaron Southerland | ADR Editor |
| Allen Yang | Boom Operator |
| Lisa Chandler | Stunts |
| Hugo Steele | Stunt Coordinator |
| Parham Banafsheh | Camera Operator |
| Ty Klassen | Camera Operator |
| Valerie Lopez | Camera Intern |
| Catherine Mallette | Second Unit Director of Photography |
| William McKnight | Second Unit Director of Photography |
| Randy Meehan | Camera Intern |
| Aleks Pichlak | Camera Operator |
| Rob Piercy | Camera Intern |
| David Strongman | Still Photographer |
| Jason W Thompson | Aerial Camera |
| Brianne Neal | Casting Assistant |
| Tilde Fiorda | Costume Design |
| Chanelle Salnikowski | Costume Design |
| Mathieu Berube | Editorial Staff |
| Valerie Biggin | Music Supervisor |
| Francesca Cammarata | Music Supervisor |
| Gina Luciani | Musician |
| Chidem Alie | Production Coordinator |
| Ian Doig | Animal Coordinator |
| David M. Hurst | Assistant Production Manager |
| Scott Corban Sikma | Production Office Assistant |
| Kim Svenningsen | Production Office Assistant |
