Brigadier Alistair Gordon Lethbridge-Stewart, generally referred to
simply as the Brigadier, is a fictional character in the British
science fiction television series Doctor Who, created by writers
Mervyn Haisman and Henry Lincoln and played by Nicholas Courtney. He
is one of the founders of UNIT (United Nations Intelligence Taskforce,
later Unified Intelligence Taskforce), an international organisation
that defends Earth from alien threats, and serves as commander of the
British contingent. Presented at first as reluctant to accept the
continuing aid of the Doctor, over time the Brigadier became one of
the Doctor's greatest friends and his principal ally in defending the
Earth.As one of the series' most prominent recurring characters over
its fifty-year history, the Brigadier appeared in 23 stories during
the original run of Doctor Who, first appearing in the 1968 serial The
Web of Fear opposite the Second Doctor (Patrick Troughton). The
character made frequent appearances on the series following the
introduction of the Third Doctor (Jon Pertwee) in 1970's Spearhead
from Space. His final appearance in the program was in 1989's
Battlefield opposite the Seventh Doctor (Sylvester McCoy). Nearly 20
years later, Courtney reprised the role in the spin-off programme The
Sarah Jane Adventures in 2008, his last appearance prior to Courtney's
death in 2011. That year, Doctor Who later paid tribute to Courtney by
announcing the Brigadier had died with a line of dialogue in "The
Wedding of River Song". Later still, a Cyberman avatar of the
Brigadier also appears, and achieves some closure with the Twelfth
Doctor (Peter Capaldi), in "Death in Heaven" (2014).The 2012 episode
"The Power of Three" introduced the Brigadier's daughter, new UNIT
chief Kate Stewart (Jemma Redgrave). The character was originally
created in the unlicensed video spin-off Downtime in 1995, in which
the Brigadier also appeared. Kate becomes a recurring character making
appearances alongside the Eleventh Doctor (Matt Smith) and Twelfth
Doctor (Peter Capaldi). Brigadier Lethbridge-Stewart Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter