Rudy Mookich is the replacement love interest of Elmyra Duff in the spin-off series Pinky, Elmyra, and the Brain. He replaced Montana Max for unknown reasons.

Unknown to Elmyra, Rudy's objects of desire are the spin-off's other two title characters, Pinky and the Brain.

Rudy is voiced by Nancy Cartwright, who had voiced Mindy in the original Animaniacs.