Malcolm-Jamal Warner, best known for playing Theo Huxtable on NBC’s The Cosby Show, has died. He was 54. The actor and director died Sunday in an accidental drowning off the coast of Costa Rica, according to ABC News, with the Costa Rican National Police noting that Warner died from asphyxia.

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Since creating and starring as Dr. Cliff Huxtable on The Cosby Show, the once-beloved and ubiquitous comedian and actor Bill Cosby has seen his public image and career impacted by numerous allegations of sexual assault and abuse, all of which he has consistently denied.