Anthony Mackie recalls Malcolm-Jamal Warner's reaction after he sported Theo Huxtable's Gordon Gartrell shirt from "The Cosby Show" on "The Tonight Show."

To truly comprehend how essential a big brother Theodore Huxtable was to Black Gen X boys, we must remember what prime time offered before the arrival of Bill Cosby's only son from the heralded sitcom,

Learn how Malcolm-Jamal Warner died at 54 in a tragic drowning accident in Costa Rica. Get verified details about the Cosby Show star's death, career highlights, and the entertainment world's reaction to losing Theo Huxtable.

Malcolm-Jamal Warner, who died while vacationing with his family in Costa Rica, made dyslexia a household name as he played his character Theo on "The Cosby Show."

Malcolm-Jamal Warner played “The Cosby Show’s” Theo Huxtable with a charismatic mix of bravado, innocence and hysteria.