Zack Sharf Digital News Director Sarah Snook said during an interview on Times Radio that her “Succession” co-star Brian Cox had a habit of outbursts on set fueled by his Type 2 diabetes. Snook, who recently won an Emmy for playing Shiv Roy on the final season of “Succession,” said Cox’s voice could get “terrifying sometimes” during these moments of rage. “He has a habit of sometimes going into a false — or could it be real, who knows? — diabetic rage,” Snook said.