Knight Pulliam, who as a child star played Rudy Huxtable on “The Cosby Show,” posted a tribute to Warner on social media over the weekend. The actor, who played her older brother Theo Huxtable on the show, died July 20 in a drowning accident in Costa Rica. He was 54.

Keshia Knight Pulliam is the latest celebrity to pay tribute to Malcolm-Jamal Warner following his tragic passing.

The "Cosby Show" star drowned last month while swimming in the ocean during a family vacation in Costa Rica. He was 54.

The actor's passing was an extremely sad moment, but his mother is doing her best to keep his memory alive with an important gesture. This week, Pamela Warner introduced the Malcolm-Jamal Warner Living Legacy Instagram account.

Pamela Warner’s Heartfelt Tribute to Her Son *Pamela Warner publicly addressed the loss of her son, Malcolm-Jamal Warner, in a deeply moving Instagram post. The 54-year-old actor, best known as Theo Huxtable on The Cosby Show,

Nearly three weeks after Malcolm-Jamal Warner’s untimely passing, his mother, Pamela Warner, is opening up for the first time.