Kelsey Grammer

Watch out, SpongeBob: Kelsey Grammer is honing in on your territory.

The Emmy winner is guest-starring on Nickelodeon's The Troop Saturday, voicing Dr. Cranius, an evil, Harvard-educated sponge that has been recaptured by monster-hunting Troop-ers Jake, Hayley and Felix.

Watch clips from The Troop

Check out the exclusive clip below to see Dr. Cranius get grilled by The Troop's advisor, Mr. Stockley (John Marshall Jones).

The episode airs Saturday at Noon/11c.

Kelsey Grammer Guest Stars on Nickelodeon's The Troop! from NickPress on Vimeo.