Malcolm-Jamal Warner, best known for his role as Theodore "Theo" Huxtable on the "The Cosby Show," drowned off the coast of Costa Rica, police said.

Malcolm-Jamal Warner, the Emmy-nominated actor best known for his role as Theo Huxtable on The Cosby Show, has died at age 54 in an apparent drowning, TMZ reported. Warner, a Grammy winner and a longtime television fixture, is survived by his wife and daughter.