The Doctor is reunited with Barbara at the prison and arranges for her to escape, but Susan remains behind bars. Jules rescues Ian, killing Leon in the process.

Stephen Greenhorn (born in Fauldhouse, West Lothian, Scotland) is a Scottish playwright, television writer and novelist.

He is the creator of the BBC Scotland soap opera River City.

He has written many original or adapted works for the stage, including "Sleeping Around", "Gilt", "Dissent", "King Matt", "The Ballad of Crazy Paola", "The Salt Wound" and "Passing Places," several of which have been published.

He has also written for The Bill and Where The Heart Is. His adaptation of Jean Rhys's novel Wide Sargasso Sea was screened on BBC Four in 2006.

In 2007 he wrote the Doctor Who story The Lazarus Experiment followed the following year by The Doctor's Daughter.

Another work in production is Sunshine on Leith, a musical based on the songs of The Proclaimers.

In 2008, he wrote a comic which featured on the Doctor Who website.

Another television project, Marchlands, a five-part supernatural drama starring Alex Kingston, aired on ITV in early 2011. Greenhorn penned the series, which was based on The Oaks (TV series), a U.S. television pilot which wasn't aired.

Gavin Muir was a British actor and musician probably best known for his role in the 1983 Television version of Accidental Death of an Anarchist.

Muir had small parts in various television programmes including The Bill, Thieftakers, Cracker, Jo Brand and Our Friends in the North. He appeared in films such as Accidental Death of an Anarchist (1983), a small film called Representative Radio in which he played the role of Joseph Goddard and The One And Only in which he played a surgeon(2002). 

He worked for BBC Radio for many years. He appears as the voice of Rosencrantz in William Shakespeare's Hamlet Prince Of Denmark and was the voice of Blacksmith in a TV series called animated tales of the world, in 2000. He was the voice of Abdab on the Terror Tomb ride at Chessington World of Adventures. His theatre work include many years working for such establishments such as Regent's Park Open Air Theatre and The Royal Shakespeare Company. He was an early member of the singing group The Flying Pickets.

Stuntman who appeared on Doctor Who in the early seventies.

Jack Melford was a British film and television actor.

He played Menelaus in the Doctor Who story The Myth Makers.

He was the brother of screenwriter and film director Austin Melford.

Also worked on Lust for a Vampire, A Home of Your Own, ITV Play of the Week, Weavers Green, Softly Softly, The Wednesday Play, Walk a Tightrope, Z Cars, Thorndyke, Emergency-Ward 10, Boyd Q.C., Night Train to Paris, A Shot in the Dark, No Hiding Place, Dixon of Dock Green, The Sentimental Agent, Jezebel ex UK, The Last Man Out, Richard the Lionheart, Silent Evidence, Sir Francis Drake, Hotel Incident, What Every Woman Wants, The Edgar Wallace Mystery Theatre, Billy Bunter of Greyfriars School, Alcoa Presents: One Step Beyond, The Cheaters, The Fourth Square, The Gentle Terror, Follow That Man, Compelled, The Vise, Danger Man, The Adventures of Robin Hood, The Four Just Men, The Army Game, Man from Interpol, Bluebeards Ten Honeymoons, Transatlantic, Sentenced for Life, Night Train for Inverness, Feet of Clay, H.G.Wells' Invisible Man, Web of Suspicion, Dial 999, Leave It to Todhunter, Fair Game, Tales from Dickens, The End of the Line, Educated Evans, The Adventures of Sir Lancelot, Fabian of the Yard, The Ladykillers, Tons of Money, Fatal Journey, Dear Dotty, Background, Heights of Danger, Up for the Cup, Warning to Wantons, No Room at the Inn, When You Come Home, My Brother Jonathan, Counterblast, The October Man, The Laughing Lady, The Rake's Progress, They Met in the Dark, Crook's Tour, Spare a Copper, The Briggs Family, The Spider, Love: In Twenty Lessons, Luck of the Devil, Someone at the Door, Money for Jam, Many Tanks Mr. Atkins, It's in the Air, Youth at the Helm, Hold My Hand, Let's Make a Night of It, Scruffy, Coming of Age, Too Many Husbands, Command Performance, Jump for Glory, Radio Lover, Luck of the Turf, Find the Lady, If I Were Rich, Birds of a Feather, Department Store, Look Up and Laugh, Honeymoon for Three, Night of the Garter, The Sport of Kings

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 

Ivor Roberts was an English television continuity announcer and television actor who often appeared in comedic roles.

Born in Nottingham, Roberts started his television career as a continuity announcer on regional television in Wales, working for TWW before that company lost its franchise in 1968.

Among his better-known roles were the characters of Arnold Thomas in the 1995-97 television series Oh, Doctor Beeching! and Mr Barnes in the second, third and fourth series of You Rang, M'Lord?. He also made a guest appearance, as a police officer, in one episode of George and Mildred. Another notable appearance was as Mr. Chick in Dombey and Son. He also played a part in "Porridge".

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