brenda castle

Look, I'm not saying that 'Glee' can do no wrong (the fake pregnancy storyline obviously refutes that), but they sure do a lot of things right. Not only do they have Kristin Chenoweth returning, Idina Menzel joining the cast, but now Molly Shannon is coming to wreak havoc at McKinley High.

According to Michael Ausiello, Shannon is playing Brenda Castle, McKinley's newest astronomy teacher/ badminton coach (did your high school have either of these things? Mine sure didn't). Not only that, but she's set to become Sue Sylvester's arch-nemesis, which is brilliant for several reasons.

One, because if Sue Sylvester has another arch nemesis besides Will, then that means more screen time for Jane Lynch, which improves any show by at least 65% (FACT).