| The adventures of Ragnar Lothbrok, the greatest hero of his age. The series tells the sagas of Ragnar's band of Viking brothers and his family, as he rises to become King of the Viking tribes. As well as being a fearless warrior, Ragnar embodies the Norse traditions of devotion to the gods. Legend has it that he was a direct descendant of Odin, the god of war and warriors. |
| Name | Character | Episodes |
|---|---|---|
| Katheryn Winnick | Lagertha | 76 |
| Gustaf Skarsgård | Floki | 71 |
| Alexander Ludwig | Bjorn Lothbrok | 71 |
| Georgia Hirst | Torvi | 69 |
| Peter Franzén | King Harald Finehair | 54 |
| Clive Standen | Rollo | 51 |
| Alex Høgh Andersen | Ivar Lothbrok / Ivar the Boneless | 51 |
| Jordan Patrick Smith | Ubbe Lothbrok | 51 |
| Travis Fimmel | Ragnar Lothbrok | 49 |
| Jennie Jacques | Judith | 42 |
| Alyssa Sutherland | Aslaug | 41 |
| Linus Roache | King Ecbert | 41 |
| Moe Dunford | Aethelwulf | 41 |
| John Kavanagh | The Seer | 39 |
| George Blagden | Athelstan | 33 |
| Adam Copeland | Kjetill Flatnose | 25 |
| Jessalyn Gilsig | Siggy Haraldson | 24 |
| Ferdia Walsh-Peelo | Alfred | 24 |
| Jasper Pääkkönen | Halfdan the Black | 23 |
| Jefferson Hall | Torstein | 20 |
| Danila Kozlovsky | Prince Oleg of Novgorod | 20 |
| Philip O'Sullivan | Bishop Edmund | 20 |
| Lucy Martin | Ingrid | 18 |
| Kelly Campbell | Ingvild | 18 |
| Scott Graham | Frodi | 18 |
| Jonathan Rhys Meyers | Bishop Heahmund | 17 |
| Morgane Polanski | Princess Gisla | 16 |
| Huw Parmenter | Roland | 14 |
| Eric Johnson | Erik | 14 |
| Ben Robson | Kalf | 14 |
| Darren Cahill | Aethelred | 14 |
| Cormac Melia | Ubbe | 14 |
| Gaia Weiss | Porunn | 13 |
| Lothaire Bluteau | Emperor Charles | 13 |
| Oran Glynn O'Donovan | Igor | 13 |
| Cathal O'Hallin | Hvitserk | 13 |
| Donal Logue | King Horik | 12 |
| Karen Hassan | Therese | 12 |
| Steven Berkoff | King Olaf the Stout | 12 |
| Leah McNamara | Aud | 12 |
| Ivan Kaye | King Aelle | 12 |
| Owen Roe | Count Odo | 12 |
| Ray Stevenson | Othere | 11 |
| Alicia Agneson | Freydis | 11 |
| Kristy Dawn Dinsmore | Amma | 11 |
| Jack McEvoy | Helgi the Lean | 11 |
| Alicia Agneson | Katia | 10 |
| Kristen Holden-Ried | Eyvind | 10 |
| Nathan O'Toole | Young Bjorn Lothbrok | 10 |
| Kieran O'Reilly | White Hair | 10 |
| Elijah Rowen | Asbjorn | 10 |
| Thorbjørn Harr | Jarl Borg | 9 |
| Gabriel Byrne | Earl Haraldson | 9 |
| Frankie McCafferty | Sinric | 9 |
| Mei Bignall | Thorunn | 9 |
| Donna Dent | Rafarta | 9 |
| Luke Shanahan | Ubbe | 8 |
| Tadhg Murphy | Arne | 8 |
| Dean Ridge | Magnus | 8 |
| Elijah O'Sullivan | Sigurd | 8 |
| Amy Bailey | Queen Kwenthrith | 7 |
| Elinor Crawley | Thyri Haraldson | 7 |
| Dianne Doan | Yidu | 7 |
| Lenn Kudrjawizki | Prince Dir | 7 |
| Steve Wall | Einar | 7 |
| James Quinn Markey | Ivar | 7 |
| Amy Bailey | Princess Kwenthrith | 6 |
| Andrei Claude | Ganbaatar | 6 |
| David Pearse | Svein | 6 |
| Eve Connolly | Thora | 6 |
| Diarmaid Murtagh | Leif | 6 |
| Seán T. Ó Meallaigh | Prudentius | 6 |
| Kevin Durand | Harbard | 5 |
| Malcolm Douglas | Cyneheard | 5 |
| Conor O'Hanlon | Alfred | 5 |
| Chris McHallem | Ealdorman 2 | 4 |
| Aaron Monaghan | Burgred | 4 |
| Ann Skelly | Ethelfled | 4 |
| Anthony Brophy | King Svase | 4 |
| Greg Orvis | Siegfried | 4 |
| Cathy White | Ealswith | 4 |
| Simon Boyle | Priest | 4 |
| Sarah Greene | Judith | 3 |
| Tomi May | Jarl Olavsonn | 3 |
| Karima McAdams | Kassia | 3 |
| Morten Suurballe | Sigvard | 3 |
| Aoibheann McCann | Skadi | 3 |
| Nathan O'Toole | Bjorn Lothbrok | 3 |
| Wesley French | Peminuit | 3 |
| Kathy Monahan | Eira | 3 |
| Keith McErlean | Lord Denewulf | 3 |
| Lochlann Ó Mearáin | First Noble | 3 |
| Peter Michael Dillon | Alfred's Mounted Bodyguard | 3 |
| Jouko Ahola | Kauko | 3 |
| Morgan C. Jones | Law Giver | 3 |
| Guy Carleton | Patriarch / Russian Priest | 3 |
| Gina Costigan | Runa | 3 |
| Laurence Foster | French Archbishop | 3 |
| Tristan Heanue | Blacksmith | 3 |
| Brendan McCormack | Leof | 3 |
| Peter Gaynor | Lord Edgar | 3 |
| Khaled Abol Naga | Ziyadat Allah | 2 |
| Chris McHallem | Saxon Noble | 2 |
| Isabelle Connolly | Anna | 2 |
| Duncan Lacroix | Ealdorman Werferth | 2 |
| Vladimir Kulich | Eric | 2 |
| Vladimir Kulich | Erik Marteinn | 2 |
| Carmen Moore | Pekitaulet | 2 |
| David Sterne | Gudmund | 2 |
| Angus MacInnes | Tostig | 2 |
| Mark Huberman | Louis | 2 |
| Albano Jerónimo | Euphemius | 2 |
| Amy De Bhrún | Jarl Hrolf | 2 |
| Fredrik Hiller | Jarl Thorkell | 2 |
| André Eriksen | Black Cloaked Figure | 2 |
| Markjan Winnick | King Angantyr | 2 |
| Sophie Vavasseur | Princess Ellisif | 2 |
| Niall Cusack | Abbot Lupus | 2 |
| Sandra Voe | Witch | 2 |
| David Murray | Lord Aethelwulf | 2 |
| Richard Ashton | Thorvard | 2 |
| Marko Leht | Torturer | 2 |
| Charlie Kelly | Egil | 2 |
| Ivo Alexandre | Bishop Leon | 2 |
| Patrick O'Donnell | Dealer | 2 |
| Gavan O'Connor-Duffy | King Frodo | 2 |
| Carl Shaaban | Jesus | 2 |
| Trevor Cooper | Earl Bjarni | 2 |
| Kevin Durand | The Wanderer | 1 |
| James Oliver Wheatley | First Warrior | 1 |
| Michael Hough | Warrior #2 | 1 |
| Michael Hough | Frightened Warrior | 1 |
| Laurence O'Fuarain | Hakon | 1 |
| Chris McHallem | First Saxon Noble | 1 |
| Chris McHallem | Noble 2 | 1 |
| Brian Fortune | Injured Noble | 1 |
| Elinor Crawley | Thyri | 1 |
| Niamh Algar | Second Woman | 1 |
| Kristen Holden-Ried | Dom | 1 |
| India Mullen | Aethegyth | 1 |
| Karen Connell | Angel of Death | 1 |
| Ian Beattie | King Brihtwulf | 1 |
| David Wilmot | Olaf Andwend | 1 |
| Renars Latkovskis | Rus Guard | 1 |
| Robert Follin | Berserker | 1 |
| Emily Baldoni | Harold's Servant | 1 |
| Amy De Bhrún | Earl Hrolf | 1 |
| Amy De Bhrún | Ingergird | 1 |
| Deirdre Mullins | Peasant Woman | 1 |
| Fredrik Hiller | Thorkell | 1 |
| Bryan Larkin | Wiglaf | 1 |
| Jack Hickey | Warrior #3 | 1 |
| Declan Conlon | Wigstan | 1 |
| Noni Stapleton | Priestess | 1 |
| Noni Stapleton | Pagan Priestess | 1 |
| Tristan McConnell | Grey Viking | 1 |
| Tristan McConnell | Greenland Settler | 1 |
| Tristan McConnell | Saxon Warrior | 1 |
| Olga Wehrly | Saxon Woman | 1 |
| Daryl McCormack | Young Arab Man | 1 |
| Tim Fellingham | Viking Messenger | 1 |
| John Kavanagh | Pope Leo IV | 1 |
| John Kavanagh | The Seer (voice) | 1 |
| Barry McGovern | French Archbishop | 1 |
| Brendan Conroy | Blind Driver | 1 |
| Søren Pilmark | Stender | 1 |
| Cillian O'Sullivan | Eirik | 1 |
| Bosco Hogan | Lord Abbot | 1 |
| Ronan Summers | Herigar | 1 |
| Adam McNamara | Thorhall | 1 |
| Lalor Roddy | Fisherman | 1 |
| Sean Duggan | Monk | 1 |
| Jamie Maclachlan | Aldwin | 1 |
| Ciaran O'Grady | Kattegat Defender | 1 |
| Ciaran O'Grady | Greenland Settler | 1 |
| Ciaran O'Grady | Viking Man | 1 |
| Katherine Devlin | Natasha | 1 |
| Malcolm Douglas | Noble 3 | 1 |
| Amber Jean Rowan | Floki's Slave Girl | 1 |
| Nigel O'Neill | Viking #2 Farmstead | 1 |
| Derry Power | Older Man | 1 |
| Faolan Barry | Aethelred (young) | 1 |
| Andy Kellegher | Saxon Warrior #1 | 1 |
| Alvaro Lucchesi | Pagan Priest | 1 |
| Richard McWilliams | Saxon Scout | 1 |
| Rebecca Grimes | Female Servant #2 | 1 |
| Rebecca Grimes | Shield Maiden | 1 |
| Gwynne McElveen | Farmer's Wife | 1 |
| Aidan O'Hare | Clergyman | 1 |
| Donna Dent | Woman | 1 |
| Gabriel Constantin | Commanding Officer | 1 |
| Hilary Rose | Female Servant #4 | 1 |
| David Ryan | Northumbrian Reeve | 1 |
| Brian McGuinness | 2nd Older Viking Man | 1 |
| Shashi Rami | Slave Trader | 1 |
| David Michael Scott | Nils | 1 |
| Tamaryn Payne | Widow Ordlaf | 1 |
| Jerry-Jane Pears | Idun | 1 |
| Sam Smith | Saxon 2 (Edwin) | 1 |
| Guy Carleton | Patriarch | 1 |
| James Flynn | Eadric | 1 |
| Neill Fleming | King 2 | 1 |
| Michelle Beamish | Female Servant #3 | 1 |
| Alex Mills | First Young Viking | 1 |
| Keith Ward | Blacksmith | 1 |
| Laurence Foster | French Bishop | 1 |
| Conor Marren | Saxon #2 | 1 |
| Josh Donaldson | Hoskuld | 1 |
| Eamonn Draper | Bishop | 1 |
| Stephen Cromwell | Kattegonian | 1 |
| Gavan O'Connor-Duffy | Housecarl 1 | 1 |
| Ciaran McGlynn | Saxon #2 Farmstead | 1 |
| Ciaran McGlynn | Saxon #2 Farmhand | 1 |
| Jonathan Gunning | Priest | 1 |
| Jonathan Gunning | Wessex Fool / Magician | 1 |
| Gary Kane | Rus Sentry 1 | 1 |
| David Coon | Roman Relic Seller | 1 |
| Des Braiden | Father Cuthbert | 1 |
| Jonathan Ryan | Noble 3 | 1 |
| Gerard Miller | The Stranger | 1 |
| Aonghus Og McAnally | Messenger | 1 |
| Michelle Costello | Female Servant #1 | 1 |
| Michael James Ford | Noble 2 | 1 |
| Seán Treacy | Prince Ecgberht | 1 |