Role in the Spin-Off
Rudy is a fat slob who acts as Elmyra Duff's crush in the series, in which she refers him as "Rudy Wudy oh so cutie". Little does Elmyra know, is that Rudy plans to steal Pinky and Brain and feed them to his pet snake Tonk.
Rudy also has hots for Patty Ann, who is Brain's alter ego and does not seem to care much for Elmyra.
Rudy Mookich was criticized for replacing Montana Max as Elmyra Duff's love interest by Tiny Toon Adventures fans.