Sammy the Scientist

(The character name is unofficial. As far as I know, the actual name of the character has not been confirmed.)"HAHAHA"

Sammy the Scientist is an insane, blue-skinned man who hangs around with Dick Dastardly and Criminal Criminy. No-one knows who he is, what made him this way or why his peers keep him around. He isn't even a scientist, he just kind of looks like one. In Timeline A, he "helped" the other Thieves find the Mayan Treasure, and killed Giant Rat, shortly before being killed by his successor. In Timeline B, he is nowhere to be found, but presumably lives in the same situation he did in Timeline A. His favourite movie is "da movie" and Day Zero was apparently his birthday.

Speculation

 * When Sammy says his favourite movie is "da movie", it is possible that he is referring to Rat Movie 2: The Movie, despite it not being released at this point in time, or known to be released at all in the Rat Movie universe.