Greg Mueller

was an Umbrella scientist. He began the T-Thanatos project. Due to fear that the Thanatos would be a bad-decision, he had the project moved from the "Mass production line". He was also responcible for the creation of the Daylight Anti-virus at the Raccoon University, of which T-Thanatos blood was needed to activate the agent. He managed to survive upto the last few hours, but was killed by Nicholi.