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

He was known for playing Theo Huxtable on “The Cosby Show.” Costa Rican authorities report he drowned Sunday afternoon at Playa Cocles on the Caribbean coast.

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 ...