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 third seasons of the...

Peter Seamus O'Toole (/oʊˈtuːl/; 2 August 1932 – 14 December 2013) was an English actor. Known for his leading roles on stage and screen, he received...

in the History television series Vikings, played as a young boy by Nathan O'Toole and through adulthood by Alexander Ludwig, is loosely based on the historical...

The second season undergoes a jump in time, aging the young Björn (Nathan O'Toole) into an older swordsman portrayed by Ludwig. The older Björn has not...

friend of Ragnar. Based on the historical Egbert of Wessex. Played by Nathan O'Toole (seasons 1–2, 4) and Alexander Ludwig (seasons 2–6) Ragnar and Lagertha's...

Kattegat David Pearse as Svein, the loyal henchman of Earl Haraldson Nathan O'Toole as Bjorn Ironside, Ragnar and Lagertha's son Ruby O'Leary as Gyda, Ragnar...

Ironside, Ragnar and Lagertha's son, who has a relationship with Torvi Nathan O'Toole portrays a young Bjorn Ironside, appearing in Ragnar's visions. Alyssa...

Lagertha's son, king of Kattegat, and husband to Gunnhild and Ingrid. Nathan O'Toole portrays a young Bjorn Ironside, appearing in a flashback Alex Høgh...

Ironside, son of Ragnar and Lagertha, in love with the slave Þórunn Nathan O'Toole portrays a young Bjorn Ironside in "Brother's War". Thorbjørn Harr as...

Athelstan Ivan Kaye as King Aelle Jennie Jacques as Princess Judith Nathan O'Toole as young Bjorn Isaac O'Sullivan as Prince Alfred Dave Rowe as a guard...