Much of the humor centers around Hägar's interactions with his longship crew, especially "Lucky Eddie" (when on voyages or during periodic sacking and looting raids). Sometimes the humor would be at the tavern with the other Vikings, or Hagar dealing with his family, who are not like stereotypical Vikings. Supporting characters include his overbearing, nagging and occasionally jealous wife, Helga; their brilliant and sensitive son, Hamlet; their pretty but domestically hopeless daughter, Honi; Helga's pet duck, Kvack; Hägar's loyal and clever dog, Snert, and other secondary, recurring characters.