Grizz Chapman, the towering Brooklyn-born actor who lent gentle menace to Tracy Morgan’s chaotic entourage on NBC’s “30 Rock,” died in his sleep Friday, May 22, 2026, after a years-long battle with kidney disease. He was 52.

Chapman’s agent, Renee Glicker, confirmed the death to multiple outlets over the weekend, saying no official cause has been released. The 7-foot-tall performer, who weighed 380 pounds, had undergone a kidney transplant in 2010 and was in need of another by the time of his death — a procedure made especially difficult by his stature.

“For all seven feet, 380 lbs of him, he was a very sweet man who loved his family very much,” Glicker said in a statement.

Saideh A. Brown, Chapman’s longtime representative, first confirmed the actor’s death a day earlier, telling reporters that Chapman’s wife, Diana, and their two children were devastated. Glicker said she believed multiple factors contributed to his passing, describing him in his final stretch as “just struggling to stay alive.”

From Strip-Club Bouncer to NBC Star

Born Mack Chapman in Brooklyn in 1974, the actor was working as a bouncer at a strip club when he first crossed paths with Tracy Morgan. The two became friends, and Chapman — then earning a living as a bodyguard — landed a commercial that paid him handsomely enough to rethink his career.

“I made $20,000 for 40 minutes of work, so I thought I was in the wrong business at that point and I needed to change,” he told an interviewer in 2012.

The switch paid off. In 2006, Chapman made his screen debut on Tina Fey’s “30 Rock,” cast as Grizz, one of the imposing-but-tender bodyguards trailing Morgan’s larger-than-life character, Tracy Jordan. The entourage was nearly cut in half before the show even hit its stride. As Chapman later recalled, network executives told Fey and Morgan they couldn’t afford all four hangers-on. Morgan pushed to keep two — and Chapman made the cut.

He stayed for all seven seasons, appearing in 80 episodes of the Emmy-winning comedy alongside Kevin Brown, who played fellow bodyguard Dot Com. The series ran from 2006 to 2013.

A Decade of Dialysis Behind the Scenes

What audiences laughing at “30 Rock” rarely knew was that Chapman was waging a private war with his health throughout the show’s run. He spent years on dialysis while filming — three days a week, four hours at a time — before receiving his 2010 kidney transplant.

The transplant itself became one of the more remarkable stories to come out of the “30 Rock” era. After announcing publicly in 2009 that he needed a kidney — and spending nearly two years on dialysis three days a week, four and a half hours at a time, while continuing to film the show — Chapman received his kidney from a fan named Ryan Perkins, a young man from Gilbert, Arizona, then in his early 20s, who had stumbled upon Chapman’s organ-donor advocacy online and felt called to help. Perkins was a match. “I really had no life before the transplant,” Chapman told the Tribune after the surgery. “I still did the things I had to do, but I really couldn’t plan anything — basketball practice, vacations, anything that wasn’t planned around dialysis.”

The experience transformed him into a full-time advocate: on March 31, 2010, he signed on as a spokesperson for the National Kidney Foundation, appearing in public service announcements and interviews to push awareness of kidney disease and the importance of donation for the rest of his life.

His cousin Donte “Hammer” Harrison, a Harlem Globetrotter, paid tribute on social media, saying Chapman “carried himself with resilience, humor, and heart despite the battles faced behind closed doors,” among them “his own health battles and dialysis.” Harrison added that Chapman died “after years of fighting illness and dialysis.”

“A lot of people knew Grizz Chapman from his unforgettable role on ’30 Rock’ alongside Tracy Morgan,” Harrison told reporters in a statement, “but to our family, he was much more than a television star. He was somebody we looked up to.”

Typecast but Undeterred

After “30 Rock” wrapped, Chapman discovered that his physical presence — all 7 feet of him — was both his calling card and his cage. He found steady work in “Blue Bloods,” “The Blacklist,” “Common Sense Police” and “The Good Fight,” along with the films “The Cobbler” and “Money Monster.” But the roles tended to look the same.

In a 2013 interview, he wondered aloud why a 7-foot actor couldn’t play a doctor, a teacher, a football coach or a cab driver — anything beyond the heavy or bodyguard he was always asked to portray. He insisted he could cry and do the emotional work casting directors assumed big guys couldn’t handle, if only they’d give him a chance.

His last on-screen credit was a 2021 short, “Diving in Stilettos First.” At the time of his death, he was in post-production on a film titled “Use Me: The Life of Guy Whitcam.”

Tributes From Old Castmates

Brown, his on-screen partner in chaos, broke the news on Facebook with a wrenching simplicity. “I regret to inform you that Mack Chapman aka Grizz Chapman passed today,” he wrote, alongside stills of the two of them acting opposite Tina Fey and Alec Baldwin. “May he RIP.”

Other “30 Rock” alumni followed. Judah Friedlander remembered Chapman as someone who was always “getting big laughs at the table reads and on camera.” Maulik Pancholy called him “so kind, so sweet, and his huge heart brought laughter to so many,” adding, “I’m grateful we became family over a seven-year run.”

Fans gathered in the comment section of Chapman’s final Instagram post — a May 17 video of him dancing alongside actor Sean Astin — to leave their own farewells. It was the last public glimpse of an actor who, even in his final days, was still moving, still making people smile.

He is survived by his wife Diana and their two children.