Nathan Fillion guest starring on Community!

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Community is making Nathan Fillion the king of the Greendale castle — for one week, anyway.

The Castle actor and self-proclaimed Community addict has signed on to guest star on the NBC comedy, TVLine has confirmed.

Per Deadline, which broke the news, Fillion will play Greendale’s politically savvy head custodian who’s not afraid to get his hands dirty, but is smart enough to wear rubber gloves. He crosses paths with Annie (Alison Brie) and Professor Hickey (Breaking Bad’s Jonathan Banks), who team up to navigate the school’s “corridors of power.”

Fillion’s episode will air midway through Community‘s fifth season, which is expected to premiere in early 2014 (if not sooner).