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On the way we lost Theo, one of my guys. We were unable to get the ammo case off of his body as we were pushed onwards.Reilly

Theo is a recently-deceased probationary member of Reilly's Rangers in 2277.


Although Reilly regarded the recently recruited Theo as "green" and viewed him as an insufficient replacement for the recently deceased members Dallas and Kira, she hoped that he would grow with experience.[1] Theo served as the mercenary company's quartermaster, helping maintain the equipment while also carrying extra ammunition on missions.[Non-game 1] As Theo was itching to participate in one of the company's mapping trips into the downtown ruins,[2] the entire group made an excursion to Vernon Square, where they were ambushed and pursued by a large army of super mutants, forcing them to take shelter in Our Lady of Hope Hospital before crossing over an impromptu bridge into the Statesman Hotel. While moving up through the hotel's stairwells, Theo was hit by a frag grenade and killed, leaving the rest of the Rangers to keep moving forward without the ammunition he was carrying.[3][4] Reilly feels considerable guilt about what happened to him, blaming herself for the tactical decisions that led to his death.[5]

Interactions with the player character[]

Interactions overview[]

FO76 ui icon quest
This character is involved in quests.

Effects of player's actions[]

  • Theo's corpse can be found in a stairwell in the Statesman Hotel. His ammunition box can be looted (during the quest) if Reilly gives the player character the code (Reilly9090). Inside are 200 5mm rounds, 100 5.56mm rounds, 100 10mm rounds, and 4 frag grenades. If the ammunition is taken from the cache, they can either keep it or share it with the other members of Reilly's Rangers on the roof of the Statesman Hotel.


Apparel Weapon Other items On death
Merc charmer outfit Theo's ammo box (next to corpse)


  • PCPC Xbox 360Xbox 360 The ammunition box code can also be Reilly0247.
  • Theo does not have Ranger battle armor like the other members of Reilly's Rangers do; he wears a mercenary outfit instead.


Theo appears in Fallout 3 and Fallout: Wasteland Warfare.



  1. Ranger compound terminal entries; Reilly's terminal, Personal Entry 176
  2. Ranger compound terminal entries; Reilly's terminal, Personal Entry 179
  3. The Lone Wanderer: "Bad move, I'm guessing."
    Reilly: "On the way we lost Theo, one of my guys. We were unable to get the ammo case off of his body as we were pushed onwards. So, guns almost dry, we hit the roof of the Statesman."
    (Reilly's Dialogue)
  4. The Lone Wanderer: "Where is Theo's body?"
    Reilly: "We lost him on one of the stairwells on the second floor of the Statesman Hotel. He almost made it, but one of the Muties hit us with a frag grenade; blew him apart. If you can get to his ammo crate, there's a ton of rounds inside. Bring as many as you can to the Rangers."
    (Reilly's Dialogue)
  5. The Lone Wanderer: "We all make mistakes, Reilly. You're not a fortune teller."
    Reilly: "Yeah, but I led the guys right into a corner. Theo died because I decided to take shelter in the hospital. I'm not so sure I'd be trusted leading anyone at this point."
    (Reilly's Dialogue)


  1. Fallout 3 Official Game Guide Game of the Year Edition p.100: "Theo (deceased):
    Theo was 22, and the quartermaster, caring for all the equipment and carrying additional ammunition that might be needed during a mission. On a probationary contract pending Reilly's decision, Theo recently succumbed to Super Mutant ordnance somewhere within the sprawling Statesman Hotel, near where the remaining team is holed up."