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."

“The Cosby Show,” starring Cosby as Dr. Heathcliff “Cliff” Huxtable, an obstetrician-gynecologist, and Phylicia Rashad as his wife, Clair, a successful attorney, blazed a historic trail in primetime television with the depiction of an educated, upper-middle-class African American family.

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.

The death of Malcolm-Jamal Warner was mourned by fans and admirers of the actor. He played the only son of Bill Cosby’s Cliff Huxtable on the landmark series “The Cosby Show” from 1984 to 1992.