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Greg Mueller

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Mainstream universe
(Capcom's primary storyline)
Greg Mueller
Biographical information
Date of death:October 1st, 1998
Physical description
Infection rate:1.21% per minute
Outbreak character type:George
Starting item (Outbreak):Anti-virus (L) (File 1)
Anti-Virus X3 (File 2)
First appearance:Resident Evil Outbreak
Last edit: 4 months ago. (Purge)

Greg Mueller was an Umbrella researcher who rebelled against the company.


Greg was assigned to the Umbrella R&D Center in Raccoon City.[1] During his time there, he was involved in the events surrounding the Arklay hospital and the illegal human drugs trials being conducted there.[2] At one point, he began researching into the experimental "Tyrant"-class B.O.W., which he attempted to develop on his own. The fruit of his work was "Thanatos", a seven-foot-tall killing machine. Unlike other Tyrants made that year, Thanatos was a very intelligent, strong, and agile creature.

However, when Umbrella began plans to mass-produce the Tyrant, Greg became furious, believing that this would take away from the individuality and uniqueness of his subject. Like many Umbrella researchers, Greg viewed his creations as works of art, and not mass production weapons as Umbrella intended, refusing to help them any further.

To further spite Umbrella, Greg helped Peter Jenkins, a Raccoon University professor, to create a cure for the t-Virus, Umbrella's most prized viral weapon.

Due to his rebellion, Greg was marked for assassination by Umbrella, who sent a U.B.C.S. team to assassinate him and retrieve a blood sample from Thanatos. Anticipating this, Greg intended to have Thanatos eliminate his would-be assassins. Thanatos largely achieved this, quickly killing off a UBCS squad. However, a UBCS Monitor, Nikolai Zinoviev, ultimately managed to shoot Greg with a silenced 9mm pistol from above the ceiling in the Second Hall, and a large amount of blood spilled from his neck, death being instantaneous.


"Too much growth weakens an organization, which what should be important becomes overshadowed by greed. Mass porduction?! Ridiculous! [...] One masterpiece is enough!"
— Greg in the opening cutscene of Decisions, Decisions.

"My apologies for this place being so... ectic. I have been monitoring your progress from here. I am grateful for your assistance. Daylight is it. The only resource against the T-virus. I cannot give it over to Umbrella. They're the ones responsible from the catastrophe which has befallen the city. In retrospect, the entire "t" project was a total disaster. Brute force should not be the only criteria for a weapon. It must also be beautiful, unique, and God-like. You will also assist me. You're going to play with my ultimate creation."
— Greg talking to the survivors in the Second Hall.

"Yoko, it's been two years... oh, but you might not know that. After all, what happened was so terrible... I think you'd want to erase it from your memory."
— Greg talking to Yoko in the Second Hall.


Greg is unlocked after completing the scenario Decisions, Decisions on VERY HARD difficulty. His set costs 10.000 points. Alternatively, he is already unlocked in File #2 and can be purchased for a much cheaper price (1.000), and can be transferred to File #1 via the Data Convert.

Greg is a George-type character . His stats are as follows:

  • Greg has the largest vitality of any playable NPC in the outbreak games, excluding the Mr. and Ms. Colors characters, of between 3600 and 4000 HP.
  • an average infection rate of 1.21% per minute,
  • a movement speed of 0.81
  • a damage multiplier of x0.85.

Depending upon the game, Greg starts each game carrying an Anti-Virus (L) (File 1) or 3 Anti-Virus (File 2) in his inventory and starts in FINE status.[3]


  • Birlew, Dan (2004). Resident Evil Outbreak Official Strategy Guide. Indianapolis: BradyGames. 


  1. Resident Evil Outbreak File #2, special item: "Gold Glasses"
  2. Resident Evil Outbreak File #2, file: "Sealed Letter"
  3. Birlew, Official Strategy Guide, p.188

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