| Mark Hamill | Luke Skywalker / Dobbu Scay (voice) |
| Carrie Fisher | General Leia Organa |
| Adam Driver | Kylo Ren / Ben Solo |
| Daisy Ridley | Rey |
| John Boyega | Finn |
| Oscar Isaac | Poe Dameron |
| Andy Serkis | Supreme Leader Snoke |
| Lupita Nyong'o | Maz Kanata |
| Domhnall Gleeson | General Hux |
| Anthony Daniels | C-3PO |
| Gwendoline Christie | Captain Phasma |
| Kelly Marie Tran | Rose Tico |
| Laura Dern | Vice Admiral Amilyn Holdo |
| Benicio del Toro | DJ |
| Frank Oz | Yoda (voice) |
| Billie Lourd | Lieutenant Connix |
| Joonas Suotamo | Chewbacca |
| Amanda Lawrence | Commander D'Acy |
| Jimmy Vee | R2-D2 |
| Brian Herring | BB-8 |
| Dave Chapman | BB-8 |
| Justin Theroux | Master Codebreaker |
| Tim Rose | Admiral Ackbar |
| Tom Kane | Admiral Ackbar (voice) |
| Adrian Edmondson | Captain Peavey |
| Mark Lewis Jones | Captain Canady |
| Hermione Corfield | Tallissan "Tallie" Lintra |
| Veronica Ngo | Paige Tico |
| Noah Segan | X-Wing Pilot Starck |
| Jamie Christopher | X-Wing Pilot Tubbs |
| Paul Kasey | C'ai Threnalli |
| Michaela Coel | Resistance Monitor |
| Priyanga Burford | Resistance Medical Officer |
| Navin Chowdhry | Resistance Cargo Pilot |
| Crystal Clarke | Resistance Transport Pilot |
| Hugh Skinner | Resistance Officer |
| Shauna Macdonald | Temporary Command Center Resistance Pilot |
| Kate Dickie | Hux's First Order Monitor |
| Ralph Ineson | Senior First Order Officer |
| Michael Jibson | Kylo's Shuttle Pilot |
| Luke Neal | Canto Cop |
| Andy Nyman | Jail Guard |
| Lily Cole | Party Girl Lovey |
| Warwick Davis | Wodibin |
| Kiran Shah | Neepers Panpick |
| Joseph Gordon-Levitt | Slowen Lo (voice) |
| Mike Quinn | Nien Nunb |
| Gareth Edwards | Resistance Trench Soldier |
| Gary Barlow | Resistance Soldier |
| Peter Mayhew | Chewbacca (consultant) |
| Edgar Wright | Resistance Trooper (uncredited) |
| Joe Cornish | Resistance Trooper (uncredited) |
| Griffin Hamill | Salaka Kuchimba (uncredited) |
| Nathan Hamill | Saile Minnau (uncredited) |
| Chelsea Hamill | Koo Millham (uncredited) |
| Yang Liang | Praetorian Guard (uncredited) |
| David M. Santana | Stormtrooper Commander (uncredited) |
| Andrew Jack | Major Ematt |
| Jonathan Harden | Resistance Monitor |
| Danny Euston | Resistance Bombardier |
| Aki Omoshaybi | Resistance Bridge Officer |
| Togo Igawa | Resistance Bridge Officer |
| Tim Steed | Holdo's First Officer |
| Simon Lowe | Resistance Hangar Captain |
| Joe Van Moyland | Temporary Command Center Resistance Pilot |
| Darren Morfitt | Transport Deck Officer |
| Gerard Monaco | First Order Commander |
| Patrick O'Kane | Hux's First Order Officer |
| Paul Bazely | Hux's First Order Officer |
| Orion Lee | Canady's First Order Monitor |
| Amira Ghazalla | Canady's First Order Commander |
| Akshay Kumar | Mega-Destroyer First Order Monitor |
| Temirlan Blaev | Stable Boy |
| Josiah Oniha | Stable Kid |
| Sara Heller | Stable Kid |
| Matthew Sharp | Resistance Trench Sergeant 'Salty' |
| Jack Greenlees | Resistance Evacuation Officer |
| Danny Sapani | Medical Frigate Captain |
| Kevin Layne | Resistance Bomber Pilot #1 |
| Ben Morris | Resistance Bomber Pilot Teene |
| Andrew Abbott | Nemisis Bond The Canto Bight Gambler (uncredited) |
| Chris Adams | Stormtrooper (uncredited) |
| Samantha Alleyne | First Order Stormtrooper (uncredited) |
| Martin Bratanov | First Order Officer (uncredited) |
| Glen Carroll | Reemar Kayvonix / Stormtrooper (uncredited) |
| Cavin Cornwall | Pemmin Brunce (uncredited) |
| James Cox | Praetorian Guard (uncredited) |
| Steve Doyle | First Order Officer (uncredited) |
| Josh Dyer | Nix (uncredited) |
| Karl Farrer | Canto Bight Casino Patron (uncredited) |
| James Filanowski | Resistance Trooper (uncredited) |
| David R. Grant | Praetorian Guard (uncredited) |
| Ómar Guðjónsson | X-Wing Pilot (uncredited) |
| Craig Izzard | Stormtrooper (uncredited) |
| Christopher Jaciow | Stormtrooper (uncredited) |
| Tobias James-Samuels | First Order Officer / Stormtrooper (uncredited) |
| Dan Lam | Kylo Ren's Shuttle Pilot (uncredited) |
| Antonio Lujak | Masseur (uncredited) |
| Josh Methven | Resistance Trooper (uncredited) |
| Sandeep Mohan | Snowtrooper (uncredited) |
| Ross Moneypenny | Stormtrooper (uncredited) |
| Florian Robin | Praetorian Guard / Ronith Blario (uncredited) |
| Scott Tanner | Resistance Trooper (uncredited) |
| Stephanie Silva | Canto Bight alien (uncredited) |
| Clem So | Canto Bight Casino Patron (uncredited) |
| Leo Thompson | Resistance Trooper (uncredited) |
| Andy Wareham | Praetorian Guard (uncredited) |
| William Willoughby | Praetorian Guard (uncredited) |
| Oscar Wright | Resistance Trooper (uncredited) |
| Karanja Yorke | Praetorian Guard (uncredited) |