Brian Cox Had ‘Terrifying’ Diabetic Rages onSuccessionSet, Says Costar Sarah Snook

Mar. 15, 2025

Brian Cox and Sarah Snook in ‘Succession’.Photo:Zach Dilgard/HBO

Brian Cox, Sarah Snook HBO Succession

Zach Dilgard/HBO

Sarah Snookis opening up about the “terrifying” diabetic ragescostarBrian Coxwould have on theSuccessionset .

Snook — the 36-year-old actress who played Shiv Roy alongside Cox’s Logan Roy on the hit HBO series — revealed she wasn’t sure whether Cox’s rages were real or false, but they could be pretty scary nonetheless.

“He has a habit of sometimes going into a false — or could it be real, who knows? — diabetic rage," Snook toldTimes Radioof Cox, 77.

“I think part of it’s a little of trying to just jolt the energy of the set and rustle a few feathers, get it going and moving faster," she continued.

Sarah Snook and Brian Cox in ‘Succession’.Peter Kramer/HBO

Sarah Snook, Brian Cox HBO Succession

Peter Kramer/HBO

She added, “The quality of his voice can be very terrifying sometimes. Thunderous.”

“I need my food and then I don’t like my food, so I have a very complicated relationship with my food,” he continued, adding: “I’ve started taking injections, so I do get hangry, yes.”

Brian Cox and Sarah Snook in ‘Succession’.Graeme Hunter/HBO

Brian Cox, Sarah Snook HBO Succession

Graeme Hunter/HBO

When it came to his screaming, Culkin said that with Logan “it was terrifying, but with Brian it was hilarious ‘cause there’s no actual weight behind it.”

“He’s a little bit hungry and he’s impatient, it’s late. Get him a sandwich and let’s roll please,” Culkin, 41, said, explaining that even if “he’s actually frustrated and he’ll yell something, it just sort of makes everyone chuckle.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.

While speaking toTimes Radiolast year, Lupe — who played Willa Ferreyra — admitted that Cox “has moments of being incredibly intimidating on and off camera.”

“He’s got a power to him as a person and I think he knows that about himself,” she shared, before adding: “That being said, he’s also one of the more kind people that I’ve interacted with on set.”

source: people.com