 | Timothy Olyphant als Seth Bullock |
 | Ian McShane als Al Swearengen |
 | Molly Parker als Alma Ellsworth |
 | Paula Malcomson als Trixie |
 | W. Earl Brown als Dan Dority |
 | Dayton Callie als Charlie Utter |
 | Kim Dickens als Joanie Stubbs |
 | Brad Dourif als Amos Cochran |
 | Anna Gunn als Martha Bullock |
 | John Hawkes als Sol Star |
 | Leon Rippy als Tom Nuttall |
 | William Sanderson als E. B. Farnum |
 | Robin Weigert als Calamity Jane |
 | Brent Sexton als Harry Manning |
 | Sean Bridgers als Johnny Burns |
 | Geri Jewell als Jewel |
 | Jeffrey Jones als A. W. Merrick |
 | Franklyn Ajaye als Samuel Fields |
 | Keone Young als Mr. Wu |
 | Peter Jason als Con Stapleton |
 | Cleo King als Lou Marchbanks |
 | Tony Curran als James Smith |
 | Jade Pettyjohn als Caroline |
 | Lily Keene als Sofia Ellsworth |
 | Don Swayze als Seacrest |
 | Gerald McRaney als George Hearst |
 | Alan Ko als Mengyao |
| Brandon Alan Makovy als Sheriff Laraby |
 | Noelle E Parker als Margaret Bullock |
| Leticia Lagutenko als Florence Bullock |
| Luke Patrick Dodge als Stanley Bullock |
 | Van Epperson als Jerry |
| Bryan Veronneau als Hearst Worker |
 | Tommy Lamey als Arty |
 | Teya Patt als Lisa |
 | Shelby Steel als Jojo |
| Adrian Snow als Bella Girl |
 | Desiree Hall als Bella Girl |
| Sarah B. Lund als Gem Whore |
| Troy Christian als Wedding Dancer |
| Nancy Dobbs Owen als Wedding Dancer |
 | Garret Dillahunt als Drunk Number 2 (uncredited) |
| Mikaella Ashley als Deenie (uncredited) |
| Jim Anderson als Hearst Henchman (uncredited) |
 | Ego Mikitas als Hearst Henchman (uncredited) |
 | April Audia als Bella Girl (uncredited) |
 | Kerry Westcott als Prostitute (uncredited) |
 | Jim Beaver als Whitney Ellsworth (archive footage) |
| Harris Callahan als Newman (archive footage) |
 | Keith Carradine als Wild Bill Hickok (archive footage) |
| Jennifer Lutheran als Jen (archive footage) |
| Daniel Minahan | Director |
| David Milch | Writer |
| Reinhold Heil | Music |
| David Potts | Art Direction |
| Johnny Klimek | Music |
| Martin Nicholson | Editor |
| Janie Bryant | Production Design |
| Maria Caso | Production Design |
| Brent David Mannon | Set Decoration |
| Erick Fefferman | Editor |
| Jason Garner | Art Direction |
| Craig Ruda | Graphic Designer |
| Gabi Endicott | Script Supervisor |
| Melissa Yonkey | Hair Department Head |
| Lana Horochowski | Makeup Department Head |
| Ante Dugandzic | Special Effects Coordinator |
| Mark Tobey | Production Manager |
| Linda L. Rebman | Art Department Coordinator |
| Freddie Hice | Stunt Coordinator |
| Janie Bryant | Costume Design |
| David Klein | Director of Photography |
| Scott Willson | Script Coordinator |
| Jeff Shewbert | Construction Coordinator |
| Jose Zamora | Key Hair Stylist |
| Corinne Fortunato | Special Effects Technician |
| Joey Rocketshoes Dillon | Armorer |
| Maurine Burke | Key Makeup Artist |
| Mitch Toles | Pyrotechnician |
| Nicole Berger | Choreographer |
| Blake Farnham | Electrician |
| Jeremy Graham | Gaffer |
| John Hoffma | Lighting Technician |
| Wes Palmer | VFX Production Coordinator |
| Joyce Kurtz | ADR Voice Casting |
| Dominic Mainl | First Assistant "A" Camera |
| Stephen Taylor-Wehr | First Assistant "B" Camera |
| Eric Hayden | Visual Effects Supervisor |
| Joel Perkal | Camera Operator |
| Christian Zeiler | Digital Compositor |
| Mario Grilli | Visual Effects Coordinator |
| Josh Greer | First Assistant Camera |
| Warrick Page | Still Photographer |
| Matt Resta | Digital Compositor |
| Joseph Vincent Pike | Digital Effects Supervisor |
| Derek Kolen | Lighting Technician |
| Tom Holm | Lighting Technician |
| Alexis Torres | Visual Effects Producer |
| Chris Sol | Lighting Technician |
| Anthony Gudino | Rigging Gaffer |
| Dave Haws | Best Boy Electric |
| Charlie Dalrymple | Lighting Technician |
| Hunter Laizure | Lighting Technician |
| Anthony D'Agostino | Digital Compositor |
| John Joyce | Steadicam Operator |
| Zoran Glisovic | Digital Compositor |
| David Hirsh | VFX Production Coordinator |
| Lynnae Duley | Additional Hairstylist |
| Michelle Nyree | Additional Hairstylist |
| Laine Trzinski | Additional Hairstylist |
| Rhonda Ann Burns | Hairstylist |
| Nicki A. Chestnut | Hairstylist |
| Lauren Ernsdorf | Hairstylist |
| Georgette Sweet | Hairstylist |
| Cary Ayers | Makeup Artist |
| Jed Dornoff | Makeup Artist |
| Ania Harasimiak | Makeup Artist |
| Ingrid Hartowicz-Fuentes | Makeup Artist |
| Ken Niederbaumer | Makeup Artist |
| Lesa Nielsen | Makeup Artist |
| Koji Ohmura | Makeup Artist |
| Ron Pipes | Makeup Artist |
| Cyndilee Rice | Makeup Artist |
| Lia Robin | Makeup Artist |
| Rob Hinderstein | Special Effects Makeup Artist |
| Scott Holbert | Special Effects Makeup Artist |
| Kenneth Roth | First Assistant Director |
| Lisa Zugschwerdt | Second Assistant Director |
| Ian Churchill | Ager/Dyer |
| Tiger Curran | Assistant Costume Designer |
| Tom Bronson | Costume Supervisor |
| Sharon Gilligan | Costumer |
| Paula Truman | Key Costumer |
| Brian Bachman | Set Costumer |
| John Ostrander | Set Costumer |
| Henry Johnson | Casting Assistant |
| Josh Ropiequet | Casting Associate |
| Gregg Fienberg | Executive Producer |
| Ian McShane | Executive Producer |
| David Milch | Executive Producer |
| Daniel Minahan | Executive Producer |
| Claire Newman | Executive Producer |
| Timothy Olyphant | Executive Producer |
| Scott Stephens | Executive Producer |
| Carolyn Strauss | Executive Producer |
| Libby Goldstein | Casting |
| Junie Lowry-Johnson | Casting |
| Dhyana Carlton-Tims | ADR Editor |
| Robert Chen | ADR Editor |
| Hunter Berk | ADR Mixer |
| Jeff Gomillion | ADR Mixer |
| Jeffrey A. Humphreys | Boom Operator |
| Brian Armstrong | Dialogue Editor |
| Shane Hayes | Dialogue Editor |
| Bernard Weiser | Dialogue Editor |
| Jason Charbonneau | Foley Artist |
| Stefan Fraticelli | Foley Artist |
| John Sievert | Foley Artist |
| Eryne Prine | Foley Editor |
| Ron Mellegers | Foley Mixer |
| Randy Wilson | Foley Mixer |
| Benjamin L. Cook | Sound Designer |
| Tim Limer | Sound Mix Technician |
| Geoffrey Patterson | Sound Mixer |
| John W. Cook II | Sound Re-Recording Mixer |
| William Freesh | Sound Re-Recording Mixer |
| Mandell Winter | Supervising Sound Editor |
| Daniel Colman | Supervising Sound Effects Editor |
| Chris Cooper | Utility Sound |
| Chris Lindsay | Best Boy Grip |
| Andres Gutierrez | Grip |
| Scott Odermann | Grip |
| Chris Way | Grip |
| Anthony Vietro | Key Grip |
| John Van Valkenburgh | Lighting Programmer |
| John Carreon | Second Assistant "A" Camera |
| Otis Sherman | Second Assistant "B" Camera |
| Chris Burket | Second Assistant Camera |
| Ara Thomassian | Additional Colorist |
| Noah Cody | Assistant Editor |
| Jonny Converse | Assistant Editor |
| Scott Klein | Colorist |
| Daniel Yang | Colorist |
| Leo Trombetta | Consulting Editor |
| David Sconyers | Online Editor |
| Jesse Lorber | Location Manager |
| Peter Rotter | Music Coordinator |
| Micha Liberman | Music Editor |
| Jillinda Palmer | Music Editor |
| Evyen Klean | Music Supervisor |
| Jennifer Reeve | Music Supervisor |
| Ryan Meinardus | Special Effects Technician |
| Taylor Walters | Special Effects Technician |
| Charles de Bernier | Production Accountant |
| David McGuire | Production Assistant |
| Mahtub Mochanloo | Production Assistant |
| Gio Paredes-Utforskare | Production Assistant |
| Angie Engelbert | Studio Teacher |
| Mandy Friedrich | Studio Teacher |
| Jennifer Confaloni | Set Production Assistant |
| Matthew Kramer | Set Production Assistant |
| Spencer R. Williams | Set Production Assistant |
| James Maloof | Art Department Assistant |
| Chris Glenn | Concept Artist |
| David Christopher Campbell | Construction Foreman |
| Elijah Valenzuela | Set Buyer |
| Forest Terry | Greensman |
| Donald S. Foster | Leadman |
| Patrick Russo | Property Master |
| Robert Broadfoot | Set Designer |
| Jeff Ozimek | Set Designer |
| Tenniel Chu | Set Dresser |
| Yuri Elvin | Set Dresser |
| Jeff Halvorsen | Set Dresser |
| Shane Valentine | Set Dresser |
| Chris Flynn | Compositor |
| Adam Broad | VFX Artist |
| Dave Rand | VFX Artist |
| Matthew Rappaport | VFX Artist |
| Zachary Goodson | VFX Artist |
| Edward M. Ruiz II | VFX Artist |
| Yuki Sugimoto | VFX Artist |
| Matthew Klein | VFX Editor |
| Elangie Pereda | Visual Effects Coordinator |
