Hollywood is paying tribute to Malcolm-Jamal Warner.

The actor, best known for his role as Theo Huxtable on “The Cosby Show,” died at 54 after drowning off the coast of Costa Rica on Sunday, July 20, according to ABC News and People. USA TODAY has reached out to representatives for Warner for comment.

Warner’s recent work included a role on “9-1-1” in 2024. Jennifer Love Hewitt, who also stars on the drama series, paid tribute in an Instagram story, writing that she “cannot believe” the news.

“This hurts my heart,” the actress said. “A gentleman, an incredible talent and we were so lucky to have him in the ‘9-1-1’ family. Heartbroken and sending love to his family.”

Niecy Nash similarly expressed shock on Instagram, noting that she “just spoke” with Warner. She recalled that the two had a conversation about “how happy we both were in our marriages.”

Need a break? Play the USA TODAY Daily Crossword Puzzle.

The “Grotesquerie” star added, “Damn friend 🥲 You were cornerstone of ‘The Cosby Show.’ We all loved Theo! Never to be forgotten. You will be missed. Rest Easy.”

Tracee Ellis Ross reflected on working with Warner on the BET sitcom “Reed Between the Lines” and wrote, “My heart is so so sad. What an actor and friend you were: warm, gentle, present, kind, thoughtful, deep, funny, elegant.”

Ross continued, “You made the world a brighter place. Sending so much love to your family. I’m so sorry for this unimaginable loss.”

Malcolm-Jamal Warner, who starred as Theo on ‘Cosby Show,’ dies in drowning at 54: Reports

Jamie Foxx wrote that he is “speechless on this one,” but added, “Rest in power, my brother.” Vivica A. Fox also said in an Instagram story that she was “stunned and saddened,” and Jennifer Hudson said she was “devastated” and “truly heartbroken.”

In a statement on X, the NAACP honored Warner, who in 2012 won an NAACP Image Award for best actor in a comedy series for his role on “Reed Between the Lines.”

“Your talent and spirit touched many lives, and your legacy will continue to inspire,” the organization said. “Thank you for the memories and the impact you made in the world of entertainment.”

Outside of “The Cosby Show,” Warner’s other notable roles included Malcolm McGee on “Malcolm & Eddie” and Dr. AJ Austin on “The Resident.”