Evil Giant People are some of the many enemies that Billy had fought. We can see him standing on a pile of their unconscious bodies in the episode, "Billy's Bucket List." He is then ran at by Evil Giant Guy, whom he punches into the air and then punches into the distance.
Notable Evil Giant People
The Evil Giant People appear to be giant, blue creatures wearing nothing but pants. They have pointed teeth and gill-ears.
- Their ears suggest that they might be aquatic creatures