Wills first began to provide voices in Pokémon during the sixth season. As with most other voice actors who worked with 4Kids Entertainment, he left when Pokémon USA and TAJ Productions took over the dubbing and distribution of the series. Years later, he provided the voice of Dolan in To Catch a Pokémon Smuggler!, making him the first former 4Kids voice actor to return to the anime in the XY series.
He is also a radio talk show host by the name of "Ghosty" on WFDU.
Other non-Pokémon roles
- Captain Falcon (F-Zero: GP Legend)
- Espio the Chameleon (Sonic X, all Sonic games (2005-2009))
- Duke of Soleanna (Sonic the Hedgehog)
- Gozaburo Kaiba, Mr. Ishtar, Seeker, Nezbitt, Roland (Yu-Gi-Oh!)
- Tyranno Hassleberry, Chancellor Sheppard, Kagemaru, Lucien Grimley (Yu-Gi-Oh! GX)
- Tank, Mr. Armstrong, Lawton, Dragan (Yu-Gi-Oh! 5D's)
- Roscoe, Don Thousand, Erazor (Yu-Gi-Oh! Zexal)
- Stainless Steel Steve (Teenage Mutant Ninja Turtles)
- Coco (Jungle Emperor Leo)