Bob - Bob is a Guardian. All guardians follow a code called "Mend and Defend." He has to mend ruptures in the interface, and defend his friends from their enemies like viruses and from the User's games which if you lose cause great damage and chaos everywhere. Bob is human shaped with a blue face, hair that is the shiny gray of pure silicon, and wears a device called Glitch on his armband. Glitch is a guardian key tool. Only certin guardians have key tools which basically help the Mend and Defend code. Bob's diamond icon is upside down compared to everyone else, has a gold background instead of white. His "hot shot" attitude has caused problems with the relationship between him and Dot. He has an apartment down by the docks, where he works on his car which looks like a cross between a hovercraft/hovering car and a 1950's Cadillac with fins.
Dot - Dot owns Dot's Diner, the place where most of the stories start. She is a successful business woman, and either hates Bob for being such a macho and insensitive protector, or loves having a man around. She is human shaped with green skin same as her kid brother, Enzo and black hair. Enzo is Dot's little brother.
Enzo/Matrix - Enzo hates being the little kid, but can't help acting like one. He is human shaped with green skin and usually wears blue pants, a white shirt with the number 01 on it, and a baseball cap. In Season III, Enzo is a lot bigger, goes by the name of Matrix, and has a big tattoo. Matrix has away different kind of attitude. He's mainly now a hardcore renagate with a wicked gun. Enzo/Matrix has a girl friend called Andraia.
Andraia - Andraia is a game sprite that piggybacked her way into Mainframe using Enzo's icon. She is the only person in Mainframe that is Enzo's age. Since the acident where Enzo's dad, a scientist caused a huge explosion which destroyed all spirites. Spirites are human like people. In season III, Andraia falls in love with Matrix.
Mouse - Mouse is a human shaped character with lilac-colored skin, flaming red hair, a white shirt and black pants. She has a reputation of being able to sneak into and out of places without being noticed. On her finger she wears a ring with her Mouse signature. This ring appears to be as powerful as Bob's Guardian Tool.
Ray Tracer - The Surfer is a very unique character. He is a flippant, laid back fellow with a similar accent to mine. Ray is a whiz when it comes to either the Net or the Web which are systems. He travels around on a flying surf board which is actual part of him. When in the Web, he also dons a websuit to protect himself. He calls this websuit a fashion statement. According to the stories that have circulated here at the lab, Ray initially tried to flirt with AndrAIa before Matrix intervened. Now however he is working on Mouse after their scandalising and much publised kiss during the Restart.
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Phong - Phong is the "ancient one" for the show; he knows everything. His body looks like something that came out of the Stanford AI Lab in the 1970's; primitive locomotion (single roller), rudimentary hands (three-pronged grabber). His gold head is bald on top and he wears a port-red tunic with Chinese dragons embroidered on it. Instead of the usual diamond icon, Phong has a Chinese Yin/Yang symbol. To obtain his wisdom, the seeker has to play him at is favorite game, Pong.
Mike the T.V. - Instead of a tv announcer, Mainframe has an announcer TV. Mike has all the bad qualities of an obnoxious announcer and won't shut up. (In fact, he is so unbearable that his remote ran away and now no one can shut him off. In one episode (Wizards...), Mike gets to prove that he is an asset to the community.
Hack/Slash - A matched pair of bumbling one-wheeled robots, "rolling teapots". Hack is red, Slash is blue. (Even Megabyte has problems remembering which one is which, as mentioned in "Quick and the Fed".) They sound like Gilbert Gottfried and are better at being "yes" men than henchmen. (They have so much weaponry that there wasn't much room left for brains.) 
