On Draconia, the Doctor reveals the Master's plan to provoke war to the Draconian Emperor. But the Master escapes, taking Jo as a hostage.

Finn Jones is an English actor, best known for his role as Ser Loras Tyrell, The Knight of Flowers, in the HBO series Game of Thrones.

Jones played Santiago Jones in the Doctor Who spin-off The Sarah Jane Adventures in the story Death of the Doctor alongside Katy Manning as former Doctor Who companion Jo Grant and Matt Smith as the Eleventh Doctor.

In October 2009,Jones appeared in the second series of Hollyoaks Later. In January 2010, he played Tim Hebdon in the 11th series of Doctors.

On April 1/8 2010, Finn appeared in two episodes of The Bill playing Commander Lisa Kennedy's (played by Julie Graham) son Mark Kennedy. In the same month he finished filming for a new online drama called The Curfew commissioned by Channel 4 and produced by BAFTA award winning company LittleLoud Productions.

On June 19, 2010, it was announced that Jones would be appearing in Game of Thrones, the HBO adaptation of George R R Martin's A Game of Thrones, as Loras Tyrell.

Jones is a member of the London based collective called Human Effort. 

Marcus O'Donovan played Claudio in the 2010 story The Pandorica Opens.

Marcus O'Donovan first entered the industry under the guidance and management of music guru Simon Fuller. He trained in London and after graduating in 2005 he appeared in a number of British television shows. He currently resides in London although he moves back and forth between his home and Los Angeles.

Appeared in Doctors, Hood, The Chronicles of Narnia: Prince Caspian, The Bill, Rock Rivals, Bigga Than Ben, Three Minute Moments, Hollyoaks, Holby City, Totally Frank

Actress who has had many roles on British Television including a small role in Timelash

Alan Sugar is a British business magnate, media personality, and political advisor. From humble origins in the East End of London, Sugar now has an estimated fortune of £770m (US$1.14 billion) and was ranked 89th in the Sunday Times Rich List 2011. In 2007, he sold his remaining interest in the consumer electronics company Amstrad, his largest and best known business venture.

Sugar is also notable for his time as chairman of Tottenham Hotspur from 1991 to 2001. Sugar appears in the BBC TV series The Apprentice, which has been broadcast annually since 2005 and is based upon the popular U.S. television show of the same name. 

Stephen Yardley is an English actor, known for his work on British television between 1965 and 2004.

He has twice had roles in Doctor Who - Sevrin in Genesis of the Daleks (1975) and Arak in Vengeance on Varos (1985) 

Best known for his role as Ken Masters in the British TV drama Howards' Way (1985�90), Yardley most recently appeared in the British TV comedy Hex (2004).

He made early appearances on TV in the 1960s, in series like Danger Man, and had an extended run during 1967�68 in Z-Cars, but his best known work was in the 1970s and 80s. These included performances as semi-reformed cat burglar William "Spider" Scott in The XYY Man (1976�77), Max Brocard in Secret Army (1978) and Police Inspector Cadogan in Virtual Murder (1992), and also took a part in the science fiction seriesBlake's 7 (1981) and the BBC TV adaptation of The Day of the Triffids (1981). Later he appeared as Vince Farmer in five's soap opera, Family Affairs (1999�2003).

Lynda Baron is an English stage, film and television actress, best known for playing Nurse Gladys Emmanuel in the BBC comedy series Open All Hours.

Early television roles included small parts in Crossroads (1964), Up Pompeii (1970), Z Cars(1971), and the British horror film Hands of the Ripper (1971). She appeared in the satirical programme That Was The Week That Was, and alternated with Annie Ross as the resident singer on Not So Much a Programme, More a Way of Life (1965).

Her first Doctor Who role was out of vision as the singer of the ballad in the 1966 story The Gunfighters. She returned the the series in 1983 playing Captain Wrack in Enlightenment. She returned to the series in 2011 playing Val Cane in the story Closing Time.

In the 1990s Baron played Auntie Pat in five episodes of the ITV sitcom The Upper Hand (1992�93), she starred in the children's television series Come Outside (1994) and voiced the character of Nanny Ogg in the BBC Radio 4 adaptation of the Terry Pratchett Discworld novel Wyrd Sisters. In 1997 Baron played Renee Turnball in Coronation Street and took guest roles in Dinnerladies (1998), The Mrs Bradley Mysteries (1998), Sunburn (1999), Nancherrow(1999), and Goodnight Sweetheart (1999). She had small parts in Minder and Last of the Summer Wine and appeared in the 1987 Christmas special ofThe Two Ronnies. Other credits include Fat Friends (2000�2005), The Bill (2000), Doctors (2000, 2006 and 2010), Peak Practice (2001), Holby City (2002 and 2006), Down to Earth (2005), Rome (2005) and Casualty (2009). In September 2010, Baron played the actress Violet Carson in a biopic about the formation of Coronation Street.

In the West End Baron has starred in the London production of the musical Follies . Other roles include An Inspector Calls, Stepping Out, Entertaining Mr Sloane and The Full Monty and When We Are Married by J B Priestley.

Rodney Bennett directed several Doctor Who stories in the Fourth Doctor era.

An in-joke reference to Bennett featured in the first story he worked on, The Ark in Space � namely, the "Bennett oscillator" mentioned by the Doctor in the first episode.

Also worked on Doctor Finlay, Soldier Soldier, The Darling Buds of May, The House of Eliott, Anything More Would Be Greedy, Tales of the Unexpected, Rumpole of the Bailey, Great Performances, Love Song, Love and Marriage, Edwin, Dombey & Son, Play for Today, Stalky & Co., BBC2 Playhouse, Sense and Sensibility, Hamlet, Prince of Denmark, The Legend of King Arthur, The Lost Boys, BBC2 Play of the Week, Rebecca of Sunnybrook Farm, North and South, Madame Bovary, The Case of Eliza Armstrong, Z Cars, Murder Must Advertise, Thirty-Minute Theatre, Dead of Night, Mistress of Hardwick, The Regiment, Trial

Barry Wilsher  played Heslington in the Doctor Who story The Faceless Ones.

Also worked on The Cherry Picker, Six Days of Justice, Jackanory Playhouse, Dr. Finlay's Casebook, John Browne's Body, The Power Game, The First Lady, Softly Softly, Theatre 625, King of the River, ITV Play of the Week, R3, The Big Noise, Miss Adventure, The Massingham Affair, No Hiding Place, Silas Marner, Z Cars, Drama 61-67, Sergeant Cork, The Plane Makers, The Saint, The Avengers, Out of This World, The Franchise Affair, Oliver Twist, The Amazing Dr. Clitterhouse, BBC Sunday-Night Play, Dangerous Afternoon, The Moonstone, The Castiglioni Brothers

Marion McDougall was an assistant floor manager on The War Games and went on to be production assistant on several Doctor Who stories between 1971 and 1977.

Other BBC productions that she worked on included The Mayor of Casterbridge in 1978, Prince Regent the following year,  Mackenzie in 1980, Smiley’s People (1982), Mansfield Park (1983), Blott On The Landscape (1985), and Fortunes of War (1987).

(Post-DW career information from obituary on page 15 of the December 2012 edition of Prospero, a publication for BBC pensioners.)

Richard Leech was an accomplished Irish actor.

Richard Leeper McClelland was born in Dublin, Ireland, son of Isabella Frances (Leeper) and Herbert Saunderson McClelland, a lawyer. He was educated at Haileybury and Trinity College, Dublin. He qualified as a doctor in 1945 before building a successful career as an actor on film and television.

He married twice, with Helen Hyslop Uttley and Diane Pearson, and had two children: Sarah-Jane McClelland and Eliza McClelland.

His numerous film credits include The Dam Busters (1955) (playing Dinghy Young), Night of the Demon (1957), Yangtse Incident: The Story of HMS Amethyst (1957), Ice Cold in Alex (1958),Tunes of Glory (1960), Young Winston (1972), Gandhi (1982) and the acclaimed The Shooting Party (1985).

On television Richard Leech appeared in Dickens of London, The Barchester Chronicles, Smiley's People, three episodes of The Avengers in different roles, Redcap, Danger Man, The New Avengers, The Duchess of Duke Street,

He appeared in the Doctor Who story  The Sun Makers.