A dangerously ill Ragnar returns to Kattegat, where his suspected death kicks off a scramble to succeed him. Meanwhile, Lagertha engages in a power struggle with her calculating, former second in command, Kalf. Rollo betrays his heritage and remains in Frankia. Floki pays the price for his brutality against the Christian priest.

TV Show Data


Status Returning Series

Network History

Certification -

Original Language English

Runtime 44m, 60m

Homepage http://www.history.com/shows/vikings



Season Regulars 11

  1. Travis Fimmel

    Travis Fimmel
    Ragnar Lothbrok

  2. Katheryn Winnick

    Katheryn Winnick
    Lagertha Lothbrok

  3. Clive Standen
  4. Alyssa Sutherland

    Alyssa Sutherland
    Princess Aslaug

  5. Gustaf Skarsgård
  6. Alexander Ludwig

    Alexander Ludwig
    Bjorn Lothbrok

  7. Alex Høgh Andersen

    Alex Høgh Andersen
    Ivar Boneless

  8. Jasper Pääkkönen

    Jasper Pääkkönen
    Halfdan the Black

  9. Peter Franzén

    Peter Franzén
    King Harald Finehair

  10. Moe Dunford

    Moe Dunford

  11. Dianne Doan

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Guest Stars 0

There are no cast records added to A Good Treason.

Crew 2


  1. CD

    Ciaran Donnelly


  1. Michael Hirst

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