Unnnamed Wife (wife)
In "Let's Go to the Hop", Mr. Berler tells the cool kids to stop getting Meg's hopes up by letting her hang out with them. Meg took the blame for doing toad just to make herself look cool and Mr. Berler didn't even punish her for it because it made her so cool.
In "And the Wiener Is ...", Meg gets out of doing a test by spending the night with Mr. Berler. Not in the way you think, though. She was actually just hired to stand guard by his bed and watch for vampires. Meg sat there with a stake and a ring of garlic.
In "The Kiss Seen Around the World", Mr. Berler hosts a movie watching class and Neil does a report on Star Trek. All he does is make a bunch of stupid comments about the movie. Mr. Berler disagreed with Neil's opinions on Star Trek, believing Captain John Luke Picard to be the superior officer.
In "Petarded", he is one of the passer bys ignoring Peter, when he locks himself in the car.
In "Brian Sings and Swings", Mr. Berler shows the class a video of himself having sex with his wife.
In "The Simpsons Guy", Mr. Berler goes to court.