By Michael Ausiello
October 13, 2008 at 12:00 PM EDT

This sounds like one funny Bones.

Former universe controller Andy Richter has signed on to guest star in an upcoming episode of Bones that takes viewers behind the scenes of the greatest show on earth: no, not Gossip Girl — the circus!

The plot finds Booth and Brennan working undercover as a knife-throwing team named Buck and Wanda (love it!); Richter plays the circus’ owner-ringmaster.

The episode is slated to air in January.

addCredit(“Jean Baptiste Lacroix/WireImage”)