David Brierly also known as David Brierley, was an English

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 actor.

Born in Yorkshire, he appeared in various television programmes but is most notable for being the voice of the robot dog

Robot dog

Robotic dogs are robots designed to resemble dogs in appearance and behavior, usually incorporating canine characteristics such as barking or tail-wagging...

 K-9

K-9 (Doctor Who)

K-9, or K9, is the name of several fictional robotic canines in the long-running British science fiction television series, Doctor Who, first appearing in 1977...

 during the 1979–1980 season of the BBC

BBC

The British Broadcasting Corporation is a British public service broadcaster. Its headquarters is at Broadcasting House in the City of Westminster, London. It is the largest broadcaster in the world, with about 23,000 staff...

 science fiction

Science fiction

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

 television series Doctor Who

Doctor Who

Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

. He succeeded John Leeson

John Leeson

John Leeson is a British actor who is best known for voicing K-9 on the television series Doctor Who from 1977 to 1979, and again in the 1980–1981 season. He was called back to do the voice of K-9 again for the 2006 episode "School Reunion" and again for the 2008 Doctor Who episode "Journey's End"...

, who was K-9's original voice (Leeson subsequently returned to the role the next season). He also appeared as one of Ken Barlow

Ken Barlow

Kenneth "Ken" Barlow is a long-standing fictional character from the ITV soap opera Coronation Street, played by William Roache, and created by Tony Warren. He is currently the world's longest-serving soap opera character, having appeared continuously from the programme's inception in December...

's university lodgers Milo, in a very early episode of Coronation Street

Coronation Street

Coronation Street is a British soap opera set in Weatherfield, a fictional town in Greater Manchester based on Salford. Created by Tony Warren, Coronation Street was first broadcast on 9 December 1960...

, and Jimmy Kemp's father in the acclaimed nuclear war drama Threads

Threads

Threads is a British television drama produced by the BBC in 1984. Written by Barry Hines and directed by Mick Jackson, it is a documentary-style account of a nuclear war and its effects on the city of Sheffield in northern England....

.
Brierly died of cancer

Cancer

Cancer , known medically as a malignant neoplasm, is a large group of different diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the...

 on June 10, 2008.

Doctor Who Season 17 (1979–80)

No	Title	Code	Episodes	Writer	Director	Original airdate
106	The Creature from the Pit The Creature from the Pit The Creature from the Pit is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 27 October to 17 November 1979.-Synopsis:On the planet Chloris, metal is scarce....	5G	4 episodes	David Fisher	Christopher Barry	27 October – 17 November 1979
107	Nightmare of Eden Nightmare of Eden Nightmare of Eden is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 24 November to 15 December 1979.-Synopsis:...	5K	4 episodes	Bob Baker	Alan Bromly	24 November – 15 December 1979
108	The Horns of Nimon The Horns of Nimon -Outside references:The plot of this serial incorporates aspects of the story of Theseus and the Minotaur - a fact the Doctor comments on at the end of the last episode...	5L	4 episodes	Anthony Read	Kenny McBain Kenny McBain Kenny McBain was a Scottish TV director and producer who was born on 28 July 1946 and died on 22 April 1989.He is perhaps best known as a producer on Inspector Morse, though he had also worked in that capacity on Boon and Grange Hill....	22 December 1979 – 12 January 1980
—	Shada Shada Shada is an unaired serial of the British science fiction television series Doctor Who. It was intended to be the final serial of the 1979-80 season , but was never completed due to a strike at the BBC during filming...	5M	6 episodes	Douglas Adams	Pennant Roberts	Unaired