Jeff Garcia, the stand-up comedian who provided the voice for the teenager Sheen Estevez on The Adventures of Jimmy Neutron: Boy Genius and the spinoff Planet Sheen , died Wednesday. He was 50.

Garcia’s death was announced on Instagram by his son, Joseph. According to TMZ , he had suffered a cerebral aneurysm in the spring and a stroke more recently and died at a Southern California hospital after being taken off life support.

Garcia voiced Sheen, a Mexican American kid who is obsessed with the superhero known as Ultra Lord, in the 2001 film Jimmy Neutron: Boy Genius and then for all three seasons (2002-06) of the Nickelodeon series. On the show, his character often went on adventures with his pals Jimmy (voiced by Debi Derryberry) and Carl Weezer (Rob Paulsen).

Jeff Garcia, t

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