Steven is relieved to discover that the Abbot was the Doctor's double. But as the time of the massacre approaches, the Doctor is eager that they make their escape.

The Doctor and Jo visit the Master who is held prisoner on an island. There they learn that several ships have recently been sunk in the area and the Doctor decides to investigate.

The Doctor and Leela arrive in Victorian London where a number of young women have disappeared. A man's body is lifted from the Thames, covered in the bite marks of a giant rat.

Ingrid Oliver is a British actress and comedian, and one half of comic double act Watson & Oliver.

Oliver and comedy partner Lorna Watson met at Tiffin Girls' School in Kingston upon Thames. In September 2005, Watson and Oliver performed their first show together at The Canal Cafe Theatre in London. Since then they have taken sell-out shows to Edinburgh Festival Fringe, in both 2006 and 2007.

Oliver has performed in various radio and television productions, including Doc Martin starring Martin Clunes, The Penny Dreadfuls' radio series The Penny Dreadfuls Present... The Brothers Faversham and in the radio series Another Case of Milton Jones. She played the part of Natalie in Peep Show on Channel 4.

She appears in the film Angus, Thongs and Perfect Snogging as Miss Stamp and in early 2009 could be seen in Channel 4's new sitcom Plus One.

In 2010 she played Mimi Throckmorton in Material Girl on BBC1, alongside Lenora Crichlow and Dervla Kirwan.

In 2012 she appeared on Let's Dance For Sport Relief with comedy partner Lorna Watson, dancing Bolero, famously used by Torvill and Dean.

In 2013 she appeared in the first episode of "The Great Comic Relief Bake Off" and was named as 'Star Baker'.

In November 2013, she appeared in the 50th anniversary special of Doctor Who, "The Day of The Doctor", as Osgood. She was seen wearing the Fourth Doctor's iconic scarf. In November 2014 she appeared again as Osgood in the series finale of Peter Capaldi's first series, dressed as The Doctor, this time mimicking Matt Smith's 11th Doctor (shirt and red bow tie) as well as David Tennant's 10th Doctor (blue trousers and red Converse shoes) as they faced the Cybermen, where she is vaporized by Missy.

It was officially announced by the BBC on April 8th 2015, that Oliver would be returning as Osgood in a 2-part story to be broadcast autumn 2015 in a battle against the Zygons.

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

Tony Selby (born in Lambeth, London) is an English actor.

He has appeared in many television programmes including a starring role in RAF National Service comedy Get Some In!, and a recurring role in the BBC science fiction television series Doctor Who as the intergalactic conman Sabalom Glitz. One of his earlier acting roles came in the original version of the film Alfie, starring Academy award-winnerMichael Caine. Another notable appearance was in Bless This House, as a depressed burglar. He also appeared in three episodes of the critically acclaimed drama series Minder (TV series), twice playing Jack, the minder of gangster's wife Rose Mellors. The early nineties saw him in the role of chauffeur to Adam Faith's character in the drama series Love Hurts. He also played Clive Mitchell in BBC's soap opera EastEnders in 2002.

Tony also appeared in the second episode of The Good Life (known as Good Neighbors in the US). He played a "rag and bone" man who sold the Goods an old wood stove and also brought them a cat.

In the United States, Tony may be best known for his role as Albert "Bert" Finch in the British TV series Mulberry.

In the episode A Decent Proposal of the BBC comedy My Family, Tony played Arthur, Susan Harper's long lost father, broadcast August 12th 2011.

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

His death was reported in June's DWM.

Wendy Richard is best known for playing Miss Brahms in Are You Being Served? and Pauline Fowler in Eastenders, a role she created and played for 22 years.

Russell Hunter was a Scottish television, stage and film actor. He is perhaps best known as the character "Lonely" in the TV thriller seriesCallan, starring Edward Woodward and that of Shop-Steward Harry in the Yorkshire Television sitcom The Gaffer.

He played Kiy Uvanov in the 1977 Doctor Who story The Robots of Death.

Born in Glasgow, Hunter's childhood was spent with his maternal grandparents in Lanarkshire, until returning to his unemployed father and cleaner mother when he was 12. He went from school to an apprenticeship in a Clydebank shipyard. During this time, he did some amateur acting for the Young Communist League before turning professional in 1946.

Under the stage name Russell Hunter, he acted at Perth Rep and at the Glasgow Unity Theatre also performing in the very first Edinburgh Festival Fringe in 1947 in The Plough and the Stars by Se�n O'Casey, was a comedian in summer variety shows and toured with a one-man show.

Hunter worked in repertory theatre and Scottish variety before making his film debut in Lilli Marlene (1950). He appeared with Archie Duncan in the film The Gorbals Story, in London the same year, which also featured his first wife, Marjorie Thomson, and he followed these by playing a pilot in the Battle of Britain drama Angels One Five in 1951.

A busy actor, he joined Peter Hall's Royal Shakespeare Company, working with Peggy Ashcroft and Dame Edith Evans.

Hunter as Lonely in a prison scene fromCallan

His most memorable role was the timid, smelly petty criminal, Lonely, unlikely accomplice to a clinical spy-cum-assassin, in the downbeat 1967 television spy series Callan. Reportedly, he said of his identification with Lonely that "I take more baths than I might have playing other parts. When Lonely was in the public eye I used only the very best toilet water and a hell of a lot of aftershave."

After playing Costard in a BBC television production of Love's Labour's Lost (1965), Hunter was cast as Lonely in ITV's "Armchair Theatre" production A Magnum for Schneider in 1967, which introduced the secret agent Callan to the screen. Four series followed (1967, 1969�72). Hunter and Edward Woodward reprised their roles in both a 1974 feature film of the same name and, seven years later, in the television film Wet Job, by which time Lonely had gone straight, got married and was running a plumbing company called Fresh and Fragrant. The title plays on "wet job" the euphemism for murder or assassination.

During his years with Callan, Hunter acted in the Hammer horror film Taste the Blood of Dracula (1970) and took the roles of Crumbles, Dr Fogg and Dr Makepeace in an ITV production ofSweeney Todd (1970), He also appeared in the British comedy film Up Pompeii (film) (1971) as the Jailor.

Hunter's other TV credits include The Sweeney, Farrington of the F.O., The Bill, A Touch of Frost, Taggart, sitcoms Rule Brittania (1975) as the Scotsman Jock McGregor and shop steward in The Gaffer (1981�83), and his last ever TV appearance, in the BBC drama Born and Bred. In his last years he reprised his Doctor Who role for a series of audio plays released on CD, Kaldor City. He also appeared in an episode of Mind Your Language.

He also appeared as different characters in the pilot and series of the BBC sitcom Rab C. Nesbitt.

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

Gerald Cross was an English actor. 

Among his credits are Doctor Who, Francis Durbridge's The World of Tim Frazer and the Miss Marple films Murder, She Said (1961) and Murder Ahoy!(1964).