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."

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.

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,

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.