“The Cosby Show” alum Malcolm-Jamal Warner has died. He was 54. The Jersey City native, who was best known for portraying Theodore Huxtable on “The Cosby Show,” drowned off the coast of Costa Rica on Sunday, July 20, per ABC News.

'The Cosby Show' Star Dead At 54 After Accidental Drowning originally appeared on Parade. Malcolm-Jamal Warner, best known for his iconic role as Theo Huxtable on The Cosby Show, has died after an accidental drowning, per multiple outlets.

Malcolm-Jamal Warner, the actor perhaps best known for starring in the TV sitcom "The Cosby Show" as son Theodore "Theo" Huxtable, has died at 54. Warner drowned off the coast of Costa Rica on Sunday, Costa Rican National Police told ABC News. Warner’s official cause of death was asphyxia, police said.