👉 Skulls are fictional characters from the video game "Doom" series created by Swedish video game developer, producer and designer, Ingmar Bergman. They were introduced in 1993 as a new type of creature that had special abilities and was known for their ability to turn invisible. The skulks were originally depicted as humanoid creatures with human-like features, including long hair, eyes that could be turned into glowing orbs, and a large, cylindrical skull on their heads. They were