DoodleBob was a crudely-drawn self-portrait of SpongeBob SquarePants that came to life. He appeared in the episode "Frankendoodle." Because he was created using a magic pencil (which belonged to a human artist at sea who accidentally threw it into Bikini Bottom, which SpongeBob and Patrick found), DoodleBob came to life. SpongeBob intended to use him to play a harmless prank on Squidward, only for DoodleBob to start beating him up and run away crazily, screaming gibberish. SpongeBob and Patrick chased him to where he had taken residence in a crudely drawn version of SpongeBob's Pineapple house, and when they cornered him SpongeBob erased DoodleBob with the magic pencil. However, unknown to SpongeBob and Patrick, SpongeBob missed one of DoodleBob's arms.
The arm infiltrated SpongeBob's house that night and used the magic pencil to restore himself (and also adds a pair of angry eyebrows) before attacking SpongeBob. During a chase, he erases a portion of his house as well as SpongeBob's butt. SpongeBob and DoodleBob struggle with the pencil and cause it to break in half, SpongeBob restores himself, and DoodleBob sharpens his piece of the pencil. DoodleBob corners SpongeBob, but when he steps on a piece of paper, his foot gets stuck to it. When SpongeBob observes this, he grabs a large book and closes it over DoodleBob, trapping him inside it and causing to become an ordinary drawing on the paper, now smiling.
The next morning, Patrick comes to SpongeBob's house and asked what was making all the noise last night, and sees DoodleBob framed on the wall. SpongeBob tells him what happened and says that DoodleBob was not evil but rather "a two-dimensional creature trapped in our three-dimensional aquatic world, longing for a purpose." Patrick says he still looks creepy.
DoodleBob returns in the Great Mouse Detective (with no memory of the episode, due to being created by the atlantian spaer instead of the pencal.) as a Villain not associated with Ratigan or the Villain League. he was planned to become part of the villain leage when they found him, but it was undone when Tman requested the good jungle book vultures to defeat him and contain the atlantian spear.