Theo Daniels was a human computer programmer living in San Francisco. Proceeding the end of magic, he was hired by Wolfram & Hart to develop TinCan, a Facebook-esque social network for demons trapped on Earth or in other dimensions. However, Wolfram & Hart also had him create a special code within TinCan to allow dimensional portals to open and stay open despite the destruction of the Seed of Wonder.
- I Wish, Part One (Only mentioned)
- Day Off (or Harmony In My Head) (Only mentioned)
- In Pieces on the Ground, Part Two
- The character is likely a reference to Mark Zuckerberg, creator of Facebook.