Prime universe
(Capcom's primary storyline)

Dennis was an Umbrella employee who enrolled at the Umbrella Executive Training School in the Arklay Mountains.


He was used in an experiment by James Marcus to test the effects of humans infected by his leeches. The infection was so strong in the leeches that he quickly began to feel ill after merely touching one. He was later locked up in a room, moaning and banging mindlessly on the doors as a zombie.[1]


  1. Resident Evil 0 (2002), file: "Management Trainee's Diary"
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