Thrilling, mature anime series is awfully gory.
Parents need to know that this mature, gothic anime series is about a group of vampires out to dominate post-Armageddon civilization -- which means that scenes frequently depict heavy violence involving spears, blood, and guts. The vampires are often ruthless in seeking their prey; their determination might scare younger viewers who tune in looking for lighter sci-fi/action animated fare. In other words, the show is part of Cartoon Network's Adult Swim line-up for a reason.