When Jo attempts to break into the IMC ship to find incriminating information, she is captured and held hostage. If the Doctor doesn't cooperate, Captain Dent will have Jo killed.

Jonathan Coy was born in Hammersmith, London, England.

He is an actor, known for Longitude (2000), Horatio Hornblower: The Fire Ship (1998) and Rumpole of the Bailey (1978)

Claire Davenport  was an English actress well-known for her "junoesque" form and who was often cast in character roles which highlighted her large physique.

She was born in Sale, Cheshire and began acting in 1961 with a theatre role in Caesar and Cleopatra at the Oxford Playhouse in Oxford.

Her film work includes cameo roles in Star Wars Episode VI: Return of the Jedi (as the Fat Dancer), The Elephant Man, Birth of the Beatles, The Tempest, and Carry On Emmannuelle. On television she appeared in Remington Steele, Doctor Who, George and Mildred, Robin's Nest, Fawlty Towers and at least three episodes of On The Buses among others.

Her last television appearance was in a 1993 episode of The Smell of Reeves and Mortimer. Her last appearance in the theatre was in the play On the Air (1998).

_{Biography from the Wikipedia article, licensed under CC-BY-SA}

Tristram Cary, OAM was a pioneering English-Australian composer.

Cary was born in Oxford, England, and educated at the Dragon School in Oxford and Westminster School in London. He was the son of a pianist and the novelist, Joyce Cary, author of Mister Johnson. While working as a radar engineer for the Royal Navy during World War II, he independently developed his own conception of electronic and tape music, and is regarded as amongst the earliest pioneers of these musical forms.

Following WWII, he created one of the first electronic music studios, later travelling around Europe to meet the small numbers of other early pioneers of electronic music and composition.

With Peter Zinovieff and David Cockerell, he founded Electronic Music Studios (London) Ltd, which created the first commercially available portable synthesiser, the EMS VCS 3, and was then involved in production of such distinctive EMS products as the EMS Synthi 1000

His concert works of note include a Sonata for guitar (1959), Continuum for tape (1969), a cantata Peccata Mundi (1972), Contours and Densities at First Hill for orchestra (1972), a Nonet (1979), String Quartet No. 2 (1985) and The Dancing Girls for orchestra (1991).

Cary is also particularly well known for his film and television music. He has written music for Doctor Who (including the first Dalek story), as well as the score for the Ealing comedy The Ladykillers (1955). Later film scores includedQuatermass and the Pit (1967) and Blood from the Mummy's Tomb (1971), both for Hammer. He also composed the score for the ABC TV animated version of A Christmas Carol.

Cary was one of the first British composers to work in musique concr�te. In 1967 he created the first electronic music studio of theRoyal College of Music. He built another at his home in Suffolk, which he transported to Australia when he emigrated there, and incorporated it into the University of Adelaide where he worked as a lecturer until 1986.

He provided the visual design for the EMS VCS3 synthesizer

Cary died in Adelaide, South Australia on 24 April 2008, aged 82.

Cary won the 1977 Albert H. Maggs Composition Award. He was awarded the Medal of the Order of Australia in 1991 in recognition of service to music. He also received the 2005 lifetime achievement award from the Adelaide Critics' Circle for his contribution to music in England and Australia.

Biography from the Wikipedia article, licensed under CC-BY-SA  

Preston Lockwood was an English actor who appeared in the 1983 story Snakedance.

He is best known for his television credits, including the role of Butterfield the butler in several episodes of Jeeves and Wooster. He also appeared in the first episode of The Vicar of Dibley as Reverend Pottle, whose death mid-way through the prayers served as the catalyst for Geraldine Grainger's arrival.

Other appearances include Poldark, Shoestring, Tenko, Miss Marple, All Creatures Great and Small and Inspector Morse. His performances on BBC Radio include Dennis the Dachsund in Children's Hour Toytown.