Jeff Garcia, the stand-up comedian who voiced Sheen Estévez on The Adventures of Jimmy Neutron, Boy Genius, has died.

Jeff Garcia, the Jimmy Neutron comedian, has died at 50 after months of health struggles. Reports reveal new details about ...

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 ...