Jeffrey “Jeff” Garcia, the comedian and voice actor behind Sheen Estevez in Nickelodeon’s Jimmy Neutron series, died on December 10, 2025. He was 50, and according to a report, he was suffering from multiple health complications leading up to his death.
News47.us has compiled five facts to know about Jeff and his career here.
Jeff began his entertainment career in the early 1990s as a stand-up comedian. He performed at various stand-up clubs throughout Southern California, including the famous Laugh Factory.
Throughout the early 2000s, Jeff appeared in other comedy gigs, such as the half-hour special program Comedy Central Presents in 2006, and he was a contestant in Reality Bites Back.
Jeff was best known for voicing the character Sheen Estevez in Jimmy Neutron, Nickelodeon’s hit children’s animated series. He reprised the role in the spinoff The Adventures of Jimmy Neutron, Boy Genius and Planet Sheen.
During his final months, Jeff suffered from multiple health complications, according to TMZ. He fell and hit his head earlier this year and had a brain aneurysm. Though he recovered from the incident, the outlet reported that he experienced a stroke in late 2025.
