Shaun White

Shaun White needed some serious acting skills for his appearance on Nickelodeon's "The Substitute," because the shtick was pretending to be clueless on a skateboard.

That is one of White's three storylines when he goes undercover as a substitute teacher to prank students at Stauffer Middle School in Downey, California. White, a three-time Olympic gold medalist in snowboarding, appears in the episode set to air at 9 p.m. ET/PT on Feb. 15. Check out this exclusive preview clip:

This is the first season of "The Substitute," which uses elaborate costumes and prosthetics to disguise celebrities so they can prank the students. By the end of the episode, though, the celebrities reveal themselves, and the school receives $25,000 for participating in the high jinx.

The Bella Twins have been on already, and other celebs booked to clown the kids include Rico and Raini Rodriguez, Asher Angel, JoJoSiwa, Johnny Orlando, Kel Mitchell and Cooper Barnes.

Here's White in another of his disguises:

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