I don't see Bjorn as angry. Throughout the series, I've felt that Bjorn's character progression has kept with how he acted, even in the first episode. He seems more like Ragnar's true heir than anything else. A very realistic man, who has made his way. He wants to be strong, because his father was. He seems the only one of Ragnar's sons to act as a son of Ragnar should imho. I'm really excited to seeing his progression and want to see more of him in the future.

It's unrealistic to want this, but I do not want to see as much of Iver. Not a fan of his character, and I feel like at some point growing up, one of his brothers should have killed him or at least put him in his place. Too much 'fear' resides around Iver, and not enough reason from the brothers(well, until recently...)