David Alan Grier has been tapped to guest-star as a Bill Nye the Science Guy type on Bones, TVGuide.com has learned exclusively.

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Grier will play Professor Bunsen Jude the Science Dude, a quirky host of a children's TV program. As we first reported, he comes to the Jeffersonian Institute hoping to get Brennan (Emily Deschanel) on his show as a guest scientist.

When Brennan scoffs at Jude's offer because she doesn't consider him a serious scientist, Jude volunteers to work with the "squinterns" to help solve a murder case. Brennan agrees to appear on Jude's show if he is successful.

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Grier is best known for his work on the Fox variety show In Living Color and the short-lived NBC sitcom DAG. He also recently competed on the eighth season of Dancing with the Stars.

Bones returns Thursday, Sept. 23 at 8/7c on Fox. Grier's appearance is scheduled to air in mid-October.