|Originally From:||Super Computer|
|First appearance:||The Tearing|
|Voiced by:||Michael Benyaer|
Bob is a Guardian from the Super Computer. He is formally designated Guardian 452 and is the protector of Mainframe from its various internal and external threats. His Key Tool is named Glitch. The Guardian motto is "To Mend and Defend," and Bob takes pride in doing just that. He is always trying his best to keep Mainframe's enemies at bay. Bob enjoys taking things as they come, is impulsive, and rarely plans anything. When he's not defending the system, Bob can be found either in his garage, fixing his perpetually broken 262 convertible, or in Dot's Diner trying to pry Dot Matrix away from her work.
Bob loves Dot Matrix. Early on they didn't talk about it much, being too shy to actually admit to it. During the Treasure of Atlantis Game, Bob and Dot rebooted as telepathic mermaids, and he was caught admiring her.