Bill Cosby shares intimate memories of Malcolm-Jamal Warner following "The Cosby Show" star's tragic drowning 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.

The actor, who died Sunday at 54, was best known for his role as Theo Huxtable, the only son of Cliff and Clair Huxtable, who was based on creator Bill Cosby's son.

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. He was 54. Warner died in a drowning accident in Costa Rica, where he was on vacation with his family, the source said.

The Cosby Show' star Malcolm-Jamal Warner shared a message about Black excellence on his final 'Not All Hood' podcast prior to his death at the age of 54.

Warner began his career as an actor by playing Theo Huxtable, the only son of Bill Cosby 's character, Heathcliff Huxtable, in The Cosby Show from 1984 to 1992. He went on to star alongside Chestnut on Fox's The Resident for two seasons.

For Black youth and teens growing up in the mid-1980s, “The Cosby Show” offered something rarely seen on television up until that time — a sitcom that placed characters who looked like them in a