Jamal Warner, best known for his role on "The Cosby Show," has died in an accidental drowning in Costa Rica, where he was vacationing with his family, officials there said. He was 54. Warner drowned Sunday afternoon at a beach in Cocles de Limón on Costa Rica's Caribbean coast,

The Malcolm-Jamal Warner said previously that his proudest achievement wasn't his memorable work as Theo Huxtable on "The Cosby Show."