Today marks a sad day around the universe for Doctor Who fans. Long-time cast member Nicholas Courtney has passed away at the age of 81. Courtney portrayed the famous Brigadier Alistair Gordon Lethbridge-Stewart, otherwise referred to as the Brigadier, alongside eight of the eleven Doctors. His first role as Lethbridge-Stewart was in The Web of Fear opposite Patrick Troughton‘s Second Doctor, and his final role in the Doctor Who universe was along with Elisabeth Sladen in a 2008 episode of The Sarah Jane Adventures entitled Enemy of the Bane.

Aside from Doctor Who, Courtney has made his mark in other television series over the years, including Escape, The Avengers, All Creatures Great and Small, and Yes Prime Minister. Despite his acting in other shows, he is forever known as the Brigadier, an aspect of his career Courtney was openly proud of.