Jeff Garcia, the stand-up comedian who voiced Sheen Estévez on The Adventures of Jimmy Neutron: Boy Genius, has died. Garcia's son, comedian Jojo Garcia, announced that the actor died at 50 on Wednesday on Instagram.

Comedian and voice actor Jeffrey Garcia, best known for his work on the Nickelodeon show “Jimmy Neutron: Boy Genius,” has died.

Though his face was not widely recognized, Garcia’s voice became iconic through his work in animation.