Although his watch had since ended on the series, Game of Thrones fans no doubt remember the inimitable Peter Vaughan, actor behind the wise and enigmatic Maester Aemon. Word now comes that the actor has passed away at age 93, following a distinguished career that also includes the U.K.’s Porridge and Citizen Smith.

The BBC writes that Vaughan’s agent Sally Long-Innes confirmed the Game of Thrones star’s passing, specifically “This is to confirm that very sadly Peter Vaughan passed away at approximately 10.30 this morning. He died peacefully with his family around him.”

Vaughan was born in 1923, and began achieving recognition in the 1960s with a string of stage, TV and film roles. In addition to his role as Game of Thrones’ long-lost Targaryen Night’s Watchman (who himself passed of old age in Season 5), Vaughan’s career include a BAFTA-nominated part alongside Christopher Eccleston in Our Friends in the North, and a memorable, if short-lived part on Porridge as the villainous Harry Grout.

Our condolence to the family, and all those remembering Vaughan’s work.