Barbara is sold as a slave and Ian is to be trained as a gladiator. The Doctor and Vicki arrive at the Emperor's court with the Doctor still masquerading as Maximus Pettulian.

The Doctor and UNIT race to prevent the Master from broadcasting the deadly activation signal and opening the channel for the Nestene's arrival on Earth.

Shaheen Jafargholi is a Welsh actor and singer from Swansea, Wales. 

He is of Iranian and Welsh descent. He appeared on ITV's Britain's Got Talent show and sang "Who's Lovin' You" at Michael Jackson's globally televised public memorial service in July 2009. In May 2010, Jafargholi signed a record deal with Island Records, and recorded a debut album "When I Come of Age" and a debut double A side single "Last Train Home/Hip Teens".

Born in Dover in 1977, Sonita Henry made her film debut as one of the President's Aides in The Fifth Element; more recently she played a Kelvin Doctor in the franchise reboot of Star Trek. Television roles include appearances in NCIS, Cold Case, Law and Order, Chuck, and in the UK Young Dracula. She is also the voice of Ellie Langford in the Dead Space series of video games.

Richard Gilliland is an American television and movie actor.

Gilliland was born in Fort Worth, Texas. He appeared onscreen in the 1970s. Notable appearances include Thirtysomething, Party of Five, Little Women, and a recurring role on Designing Women (where he met his wife Jean Smart, who starred as Charlene in that series). The couple has one son, Connor. Richard recently played Ellis Kapp on The Unit and Captain Stan Cotter on 24 while his wife Jean Smart played the First Lady Martha Logan in season 5. (He was in episode 2:00am to 3:00am). Gilliland is best friends with actor Joe Mantegna.

Gilliland is also very active in the theatre. Recent credits include Balancing Act, with Yeardley Smith and I Remember You, with Tony Danza; both at Garry Marshall's Falcon Theatre. He studied at the Goodman School of Drama, Playwright's Kitchen Ensemble and spent four seasons at summer stock.

Brian Croucher is an English actor and director perhaps best known for his role as Ted Hills, which he played from 1995 to 1997, in the soap opera EastEnders.

He has appeared in three science fiction programmes — as the second actor to portray Travis in Blake's 7 and also as Borg in the Doctor Who story The Robots of Death. He also appeared in the Doctor Who spin-off Shakedown: Return of the Sontarans. Earlier, in 1973, he played a key protagonist in the children's adventure series The Jensen Code.

In 1978, he played a major role opposite Tom Bell in the Thames Television/Euston Films thriller series Out.

One of his earliest film roles was in the Carol Reed's film musical of Lionel Bart's Oliver!, he played one of the London Bridge bargemen - a small uncredited speaking part. His other film roles included Burke & Hare (1971), the 1972 film Made (1972) starring Carol White, the comedy short The Waterloo Bridge Handicap (1978), A Nightingale Sang in Berkeley Square (1979), Scrubbers (1983) and Underworld (1985).

He also appeared as a "Pay Cop" Lieutenant in the ITV serial Quatermass, starring Sir John Mills which was broadcast in the UK in 1979. He was also in the 1985 drama serial Edge of Darkness.

He appeared in the episode "Parade" in the second season of Bottom as "Ted Nugent" who Eddie calls "Harry the Bastard".

He also appeared in a supporting role in the Clive Owen film I'll Sleep When I'm Dead. He is currently appearing in a TV commercial for Aviva insurance. He has directed 2 short films Rank (2009) co-written with Nick Wilkinson, and Vodka & Coke (2013), also written and produced by Nick Wilkinson.

In 2012, he acted the character of Lonnie in the feature film Coolio (C.O.O.L.I.O – Change Original Ordinary Lives Interface Oracle), which was released in 2014.

He now lives in Kent with his wife and two children.

Other TV appearances include: Grange Hill, Public Eye, Callan, Dixon of Dock Green, Softly, Softly: Taskforce, Villains, Six Days of Justice, Warship, The New Avengers, The XYY Man, Shoestring, Minder, The Gentle Touch, The Professionals, The Chinese Detective, The Young Ones, Dempsey and Makepeace, C.A.T.S. Eyes, Rockliffe's Babies, Bread, Lovejoy, Wycliffe, Casualty, The Bill, Doctors and New Tricks.

Brian Croucher is a patron of The Music Hall Guild of Great Britain and America.

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

John Caesar had several minor roles in Doctor Who.

Also worked on The Bill, Lady Is a Tramp, Janet and Company, Lorna Doone, The Legend of Robin Hood, Upstairs, Downstairs, Bless This House, Spy Trap, Thirty Minutes Worth, Thriller, Barlow, Some Mothers Do 'Ave 'Em, War & Peace, Father Dear Father, New Scotland Yard, The Onedin Line, Love and Mr Lewisham, The Man from Haven, The Man Outside, The Befrienders, The Regiment, Dixon of Dock Green, The Rivals of Sherlock Holmes, Z Cars, Roads to Freedom, Menace, Biography, A Cuckoo in the Nest, Paul Temple, ITV Playhouse, Germinal, Resurrection, The Gamblers, Vanity Fair, Les Mis�rables, Great Expectations, No Hiding Place, The Forsyte Saga, Bat Out of Hell, The Three Musketeers, The Informer, Seven Deadly Sins, The Valiant Varneys, Maigret, The Six Proud Walkers, The Escape of R.D.7, A for Andromeda

Actor who appeared in the 1966 story Power of the Daleks.

Bart Allison was an actor who appeared in the 1965 story The Romans.

He also had roles in Play for Today and Z Cars.

Spencer Chapman was Designer for The Dalek Invasion of Earth and The Space Museum.

Also worked on In Love with Alma Cogan, Gilbert & Sullivan: A Motley Pair, She Stoops to Conquer, Falstaff, A Mind to Murder, Unnatural Causes, Devices and Desires, Anything More Would Be Greedy, A Taste for Death, Tales of the Unexpected, A Killing on the Exchange, The Black Tower, Love Song, The Kingfisher, Private Schulz, God's Wonderful Railway, Shoestring, Play for Today, BBC Play of the Month, The Glittering Prizes, Centre Play, Late Call, Dr. Watson and the Darkwater Hall Mystery, The Edwardians, The Sextet, The Golden Bowl, Clochemerle, Roads to Freedom, The First Churchills, The Expert, The Wednesday Play, The Jazz Age, Detective, Vanity Fair, The Forsyte Saga, The Spies, An Enemy of the State, The Mask of Janus, Theatre 625, First Night, Z Cars

Barrie Ingham is an English actor of stage, television and film.

He played Alydon in the 1965 feature film Dr. Who and the Daleks and Paris in the Doctor Who television serial The Myth Makers.

Ingham was born in Halifax, West Yorkshire, the son of Irene (née Bolton) and Harold Ellis Stead Ingham. He was educated at Heath Grammar School and became a Royal Artillery Officer. His major theatre debut was at Manchester Library Theatre Company and then he moved to London's Old Vic. He has also played with many leading production companies including the Royal Shakespeare Company, Mermaid Theatre Company and Royal National Theatre.

Barrie has been featured in over 200 British and American films and TV productions. After playing Sejanus in Granada TV's The Caesars (1968), he had a short spell as an ambitious government minister in The Power Game in 1969. In 1971 took the leading role in the series Hine, as an unscrupulous arms dealer.

Sir John Gielgud gave him his Broadway debut and he subsequently played in many Broadway musicals, including Copperfield on Broadway, and opposite Angela Lansbury in the London production of Gypsy: A Musical Fable in 1973. When the production transferred to Broadway, Barrie did not stay with the show. He also appeared as King Pellinore in the 1981-82 revival of Camelot to critical acclaim. In 1991-2, he appeared in the final cast of Andrew Lloyd Webber's Aspects of Love, opposite Sarah Brightman on Broadway. His last Broadway outing was in the Broadway musical Jekyll & Hyde, for which while the show did not receive favorable reviews on Broadway, Mr. Ingham did for his performance as Sir Danvers Carew, a mentor to the title character of Dr. Jekyll and the father of Emma Carew, Jekyll's fiancee. Mr. Ingham opened the show in 1997 and subsequently stayed for the next four years till the show closed in January 2001. Ingham was seen as was the final Broadway cast in the 2001 filmed version of the musical. Also acted in theatre in Australia, such as Noël Coward's Private Lives, in Sydney in 1976. He was interviewed during that visit by Bill Collins, and for the Doctor Who fanzine Zerinza.