exist Jimmy Neutron, the voice actor of Libby Folfax may sound familiar from other TV shows and some video games.The continuation of the 2001 animated feature film Jimmy Neutron, Boy Geniuscartoon series The Adventures of Jimmy Neutron, Boy Genius is a series that aired on Nickelodeon from 2002 to 2006. The story follows the titular Jimmy (voiced by Debbie Derryberry), a young gifted boy, as he embarks on fun adventures with his friends and family. His classes at the school included characters such as Libby Folfax, Carolyn Lawrence’s best friend, and Sheen Estevez ) (Jeffery Garcia) love.