: They are soon joined by Claudia Donovan, a brilliant young tech prodigy who initially breaks into the Warehouse to rescue her brother but eventually becomes the facility's resident hacker and inventor.

: Playful and intuitive; he can sense when "something's up."

: The enigmatic and seemingly ageless leader of the Regents (the Warehouse's secret board of directors).

: The grumpy but protective manager of the Warehouse who keeps many secrets from his agents.