Malcolm-Jamal Warner, an actor and artist who rose to fame as a child as Theodore Huxtable on “The Cosby Show,” has died, according to a source close to the actor.

Mr. Warner, who played the only son of Bill Cosby’s character on the beloved 1980s sitcom, drowned in Costa Rica.

Actor and director Malcolm-Jamal Warner, best known for his role on "The Cosby Show," has died in an accidental drowning in Costa Rica, officials there said. He was 54.