Dr. Ludvig Maxis is an antagonist of the Zombies storyline, the lead scientist part of the project known as "Der Riese" and was the father of Samantha Maxis. The player can discover information about him after activating hidden radios. He was the leader of Group 935, aiding in the creation of the Zombies and Hellhounds. He can be heard on several radio/films reels and occasionally while in the teleporter. A photograph of Maxis appears in Origins' intro cutscene. Maxis reappears in Shadows of Evil through a voice cameo, while both the original and the Origins versions of Maxis appear in The Giant. Maxis' voice is also used for traps and mechanics in The Giant and Der Eisendrache.