Molly Shannon Molly Shannon

Mr. Schu may be able to catch a break because Sue Sylvester has a new nemesis to set her sights on.

Saturday Night Live alum Molly Shannon will join Glee as the new enemy of Jane Lynch's Sue in a recurring role, TVGuide.com has confirmed.

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Shannon's character, Brenda Castle, will serve as McKinley High School's new 45-year-old astronomy teacher and badminton coach; she's also an alcoholic and a pill popper. Her first episode is scheduled for May.

News of Shannon's addition was first reported by Entertainment Weekly.

Are you excited to see Shannon join the cast?