As reported by Redanian Intelligence, Kristofer Hivju, actor known for playing Tormund Giantsbane in Game of Thrones, officially joined the cast of the second season of The Witcher and will play the role of "Nigel". According to reports from the well-known witcher site, "Nigel" would be the code name of Nivellen. Below is the description of the character:
Charismatic, witty and funny man. Coming from an aristocratic family, he was cursed for past crimes.
As the casting sheet suggests, the role of Nivellen will be physically demanding and will only appear in the opening episode of the second season of the original series Netflix, The Witcher.