UNIT are summoned to Wenley Moor research station which is experiencing mysterious power losses. In the nearby caves, one of the staff has been killed and another sent insane.

Learning of an alien seed pod at the Antarctic, the Doctor and Sarah investigate. But they are too late. A man is already turning into a Krynoid.

Matt King is an English actor, comedian and writer. He is best known for his role as self-absorbed musician Super Hans in the British sitcom Peep Show.

King moved to Australia where he worked as a chef before meeting Jimeoin McKeown. McKeown suggested that he become a stand up comedian. King worked in the Australian comedy circuit for 15 years before returning to the UK.

As an actor he has played many characters, including Elton John and Terry Venables, in the Bafta-nominated comedy series Star Stories, and starred in his own self-penned sketch show Dogface, also on Channel 4. He has appeared in cult comedy series Look Around You and in the third series of Skins, playing Cook's father. He co-starred in the movie Inkheart, co-stars in the Guy Ritchie film Rocknrolla, the British film Bronson, and has a lead role in fantasy thriller Malice in Wonderland. He has also appeared in the third series of Doctor Who as Peter Streete in The Shakespeare Code and was a regular character in the BBC production Jekyll playing computer expert Freeman. He played a ticket tout in the acclaimed independent short film "Brussels" by Misha Manson-Smith.

As a stand-up comedian he has appeared at the Edinburgh festival and at the Melbourne International Comedy Festival. One of his shows was disrupted by the fact that he had a devastating car crash immediately before the show started, but the show went on.

In 2010 he played driver and bodyguard to Ray Winstone's character, Rob Gant in London Boulevard alongside Colin Farrell and Keira Knightley. In the same year he co-wrote the BBC2 series Whites starring Alan Davies.

In 2011, King starred in the Australian drama series Spirited, in which he plays the ghost of 1980s rock star Henry Mallet. He also stars in the Sky One generational family comedy drama, Starlings, co-written with Steve Edge and produced by Steve Coogan.

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Actor who played Snape in the 1979 story The Armageddon Factor.

John Angus Basil Crockett was a stage and television director. He was the second son of Colonel Basil Crockett DSO.

He directed the Doctor Who story The Aztecs in 1964, one of the most highly regarded of the black and white stories. In the 2002 DVD release of the story, the actor John Ringham is effusive in his praise for Crockett.

In 1939, he was a student of Art at Goldsmiths' College, New Cross, London, UK.

In 1944 he established a theatre company called The Compass Players. It was a travelling company that intended to perform high quality theatre to audiences who would not normally have access to it. During this time Crockett met his wife to be, Anne Marguritte Stern, first daughter of Dr. William Joseph Stern OBE, an eminent physicist. They raised their family in the Cotswolds, where he continued to paint.

In the late 1950s and early 1960s, John produced a number of plays for both the Birmingham Repertory Theatre and the Dundee Repertory Theatre.

From Sept.1969 until Dec.1976 he was a teacher of Art and Drama at Downside School (Somerset, UK.), where he sent one of his three sons, Dr Antony Crockett FRCGP.

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Sir Terry Wogan, KBE, was a UK radio and television broadcaster, best known for his morning show on BBC Radio 2 and as presenter of The Eurovision Song Contest and Children in Need.

Michael Terence Wogan was born in Limerick, EIRE, to a strongly Jesuit family, a religion that influenced his youth until losing his faith at the age of 17. He developed a love of amateur dramatics and rock'n'roll during his time at school once the family had moved to Belfast, but initially set out on a career with the Bank of Ireland before the lure of the radio brought him to RTE and a role in news and documentaries and later light entertainment. This led to his first experience as a DJ, and also as a quiz show presenter with Jackpot.

When Jackpot ended, he sought out a career with the BBC, a move which ultimately led to him presenting the breakfast morning slot on BBC Radio 2 in 1972, a role he continued until 1984 and again between 1993 and 2009 and one which earned him the title of the Ultimate Icon of Radio 2 in 2007 during a vote on the channel's 40th anniversary. However, he was soon back on the airwaves with a Sunday morning show.

In 1971 Wogan was to first encounter The Eurovision Song Contest through radio coverage, providing further commentaries during the 1970s before becoming the "voice" of the contest on television in 1980, a role he continued annually until 2008 (after which the mantle was taken up by Graham Norton). During the period he became famed for his cynical view of the contest and its entrants, often considered to be more entertaining than the acts themselves!

Also in 1980 he presented the first of what has become the annual charity marathon Children in Need, a show he fronted every year until having to pull out at the last minute in 2015 owing to illness. In 1983 he was to introduce Doctor Who's 20th anniversary special, The Five Doctors, after which he interviewed the then current Doctor Peter Davison, during which who introduced UK viewers to the US slang term "Whovian" that the media continue to use to this day. In 1985 Doctor Who again heavily featured, with Wogan receiving a cheque from the Doctor Who Appreciation Society presented by a plethora of Doctor Who stars. In 1993 he was again to introduce another anniversary of Doctor Who, its 30th 3D special Dimensions In Time. The association with Doctor Who continued with its 21st Century return, with several special mini dramas and trailers for the show appearing during the marathon.

Further connections with Doctor Who occured through his own chat show, Wogan, which ran between 1982 and 1992 and featured guests which included Colin Baker and Lynda Bellingham in 1986 to promote The Trial of a Time Lord, and also through letters to the BBC's viewer response programme, Points of View, which he presented between 1999 and 2008.

Other notable work included presenting Come Dancing (1974-1979), The Terry and Gaby Show (2003-2004), and as the first presenter of the game show Blankety Blank (1979-1983).

He was the subject of This Is Your Life in 1978, was awarded the OBE in 1997 and knighted in 2005.

His death after a short battle with cancer was announced by his family on the 31st January 2016, and is survived by his wife Helen Joyce (who he married in 1965), three children and grand-children.

Brian Langley was Film Cameraman for the 1968 story The Ice Warriors.

Had a long and distinguished career britsih television and films working on over 80 titles.