title: Nathan O'Toole
text: # Nathan O'Toole
  
  Nathan O'Toole (born 17 March 1998) is an Irish actor. He is known for his role as a young Bjorn Ironside in the first, second and fourth seasons of the History series Vikings. O'Toole made his television debut at 13 in the Showtime series The Borgias as Vincenzo.
  
  ## Early life
  
  O'Toole grew up in Dunshaughlin, County Meath with three siblings. He attended St. Seachnall National School and then Dunshaughlin Community College. He began taking acting classes with Ann Kavanagh's Young People's Theatre when he was 10. He then went on to train at Bow Street Academy in Dublin.
  
  ## Filmography
  
  | Year | Series | Role | Notes |
  | - | - | - | - |
  | 2012 | The Borgias | Vincenzo | 2 episodes |
  | 2013–2014; 2016 | Vikings | Björn Ironside | 11 episodes; Recurring (Season 1) Guest (Seasons 2; 4) |
  | 2014 | Penny Dreadful | Ernest | Episode: "Resurrection" |
  | 2017 | Clondorca | Brian | Short film |
  | 2018 | The Delinquent Season | Teen 2 | |
  | 2018 | Bernard Dunne's Mythical Heroes | Various | |
  | 2021 | Der Irland-Krimi | Michael O'Connor | Episode: "Vergebung" |
  