|First appearance||"Mars University" (1ACV11)|
|Voiced by||David Herman|
- He has a catchphrase, the exclamation "oh, boy".
- When he's nervous, he gets hungry. He ate Dean Vernon's model ship and a portrait of Dean Vernon.
- The "character future captions" at the end of "Mars University" say he caught a virus in Tijuana and had to be rebooted.
- He can be seen training to become a police officer during "Law and Oracle".
Bender: Well, looks like the party's winding down. Let's take a road trip to Tijuana and get Fat-bot some action.
Fat-bot: It's my first time, I'm really nervous. [He eats a portrait of Dean Vernon.]
[Looking at a rack of stuffed human dolls.]
Fat-bot: Wow! Look at the rack on that one! Uh, I mean, the one on the rack!