Nicholas Donnelly (actor)

Nicholas Donnelly (1938 – January 2022) was a British actor. He was best known for his roles as "Grange Hill" as Mr. Craig MacKenzie]from 1985 to 1993, and as Sergeant Johnny Wills in police series "Dixon of Dock Green" from 1960 to 1976. He was born in London.
Donnelly died in January 2022, at the age of 83.