Vikings. Their sing-song manner of speech seemed a bit odd at first. I thought it was just Ragnar, but then several other characters spoke in the same style. I wondered if they were told to speak that way in the show. What's weird though is that Travis Fimmel (Ragnar) spoke the same way in the movie Warcraft.
Speaking of movies, anybody watched Arrival? I was not impressed and had a strange craving for calamari after watching it.