Warner's beloved role as Theo Huxtable on The Cosby Show lives on in the hearts of his many fans as many are mourning the TV star in the wake of his recent death

Warner’s follow-up to Jeremiah saw him heading back to sitcom territory, this time as a sidekick to none other than former Seinfeld cast member Jason Alexander. Listen Up was the George Costanza actor’s second attempt to lead his own comedy after the hit NBC series ended, and starred him as sports commentator and family man, Tony Kleinman.

Actor and director Malcolm-Jamal Warner, best known for his role on "The Cosby Show," has died in an accidental drowning in Costa Rica, where he was vacationing with his family, officials there said. He was 54.