On This Day (USA) - 23 September

The Tomb of the Cybermen: Episode 4 premiered on BBC One in 1967 at 5:50pm BST, watched by 7.40 million viewers.

The Cyber Controller has been revitalised after leaving the icy tomb, threatening to overpower his human foes. The Doctor is determined to return the Cybermen to their long sleep.

The Ribos Operation: Part Four premiered on BBC One in 1978 at 6:21pm BST, watched by 8.20 million viewers.

Kate Powell will be 47 - 3 credits, including Asst Prod Co-ordinator for Everything Changes(TW)

Kate Powell was born in Albuquerque, New Mexico, USA.

She is known for her work on Transformers (2007), The Proposal (2009) and House of Wax(2005).

Frank Cottrell-Boyce will be 64 - 2 credits, including Writer for In The Forest Of The Night

Frank Cottrell Boyce is a British screenwriter, novelist and occasional actor, known for his children's fiction and for his collaborations with film director Michael Winterbottom. 

He has recently achieved fame as the writer for the 2012 Summer Olympics opening ceremony and for sequels to Chitty Chitty Bang Bang: The Magical Car, a children's classic by Ian Fleming.

Boyce has won two major British awards for children's books, the 2004 Carnegie Medal for Millions, which originated as a film script, and the 2012 Guardian Prize for The Unforgotten Coat, which was commissioned by a charity.

Nicholas Witchell will be 70 - credited as Himself in Voyage of the Damned

Nicholas Witchell  is an English journalist. He is the current diplomatic and royal correspondent for BBC News. Previously he was a newscaster.

Witchell, along with Sue Lawley, became the first newsreader of the BBC Six O'Clock News when that programme, now called the BBC News at Six, was launched in 1984. In 1988, the Six O'Clock News studio was invaded during a live broadcast by a group of women protesting against Britain's Section 28 (a law against the teaching of homosexuality in schools). Witchell famously grappled with the protesters and is said to have sat on one woman, provoking the ambiguous frontpage headline in the Daily Mirror, "Beeb man sits on lesbian".

He was the first reporter to give the news of the Lockerbie disaster, the Zeebrugge ferry disaster and the death of Diana, Princess of Wales.

The following year he moved from the evening to the breakfast news slot, a role he filled for five years. During the 1991 Gulf War he was a volunteer presenter on the BBC Radio 4 News FM service.[3] In 1994 he left the studio to become a reporter for factual affairs programme Panorama.

In 1998, Witchell became a royal and diplomatic correspondent. In 2002, his obituary of The Princess Margaret, Countess of Snowdon, recorded some time before her death but screened immediately after the announcement of her death, provoked controversy, as it mentioned her lovers and love of whisky.

Witchell provoked royal ire again in 2005. Whilst at a press conference at the Swiss ski resort of Klosters, Witchell asked The Prince of Wales how he and his sons were feeling about his forthcoming marriage to Camilla Parker Bowles. After a response from his son Prince William, the Prince of Wales said under his breath, and referring to Witchell, "These bloody people. I can't bear that man. I mean, he's so awful, he really is." Witchell himself was then in the headlines. The BBC defended their reporter saying "He is one of our finest. His question was perfectly reasonable under the circumstances."

Witchell is a Governor of Queen Elizabeth's Foundation for Disabled People, an Officer of the Order of St John and a Fellow of the Royal Geographical Society. He has two children and lives in Central London with his long term partner Maria Staples.[2][4]

Witchell appeared as himself in the Doctor Who Christmas Special "Voyage of the Damned", broadcast on Christmas Day 2007.

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

Floella Benjamin will be 74 - 4 credits, including Professor Rivers in The Eternity Trap(SJA)

Floella Benjamin, Baroness Benjamin, OBE, DL (born 23 September 1949) is a British actress, author, television presenter, singer, businesswoman and politician. She is known as presenter of children's programmes such as Play School, Play Away and Fast Forward. On 28 June 2010, Lady Benjamin was introduced to the House of Lords as a Life Peer nominated by the Liberal Democrats with the title of Baroness Benjamin, of Beckenham in the County of Kent.

She was born Floella Karen Yunies Benjamin in Pointe-à-Pierre, Trinidad, one of six siblings, with two brothers and three sisters.

When her father, "a policeman and a talented jazz musician", decided to emigrate to Britain, the children were left in the care of family friends. In 1960 the children went to join him in Beckenham, South London. She has discussed the racist experiences she had when arriving in Britain as an immigrant.

Having left Rose-mead Preparatory School to work in a bank, she studied for A-levels at night school. After a spell as a stage actress in West End musicals, she began presenting children's television programmes in 1976, notably Play School for the BBC.

Benjamin has appeared in Hair, Jesus Christ Superstar, The Black Mikado and The Husband-In-Law, as well as several pantomimes. On screen, she appeared in the 1975 horror film I Don't Want to Be Born and starred in the 1977 film Black Joy. Her television credits include Angels, Within These Walls, Crown Court, The Gentle Touch and Dixon of Dock Green. She appeared as Juniper in the first episode of Bergerac (1981).

Benjamin read two stories for the Story Teller magazine series (1983 and 1984). She is chief executive of Floella Benjamin Productions, which has produced television programmes since 1987. She had done the voice work of "U" and "PG" Video Standards Council information clips. In 2006, she appeared in an episode of The Line of Beauty. In 2007–09, and again in 2011, she guest-starred in the Doctor Who spin-off The Sarah Jane Adventures as Professor Rivers from the Pharos Institute in the stories "The Lost Boy", "Day of the Clown", "The Eternity Trap" and "Sky". She narrated three "making-of" documentaries on the Doctor Who DVD box-set The Black Guardian Trilogy. In 2007, she played a small role in the British comedy Run Fatboy Run. She is the singer for a rock and blues band Damn Right I Got The Blues, and says: "When I sing I am in my element."

Her 20th book, a memoir, Coming to England, about moving from Trinidad, was published in 1997, and is now used to teach modern history to young people. Other books written by Floella and published by various houses include titles such as Floella's Fun Book, Why the Agouti Has No Tail, Caribbean Cookery and Snotty and the Rod of Power. Many of her titles are aimed at children and development.

She was awarded an OBE for services to broadcasting in 2001. At that time she was chairman of the British Academy of Film and Television Arts (BAFTA). She has also won a Special Lifetime Achievement award from BAFTA. She was chairman of the Women of the Year Lunch for five years and a Millennium Commissioner. She is president of the Elizabeth R Commonwealth Broadcasting Fund and a governor of the National Film and Television School. She was a governor of Dulwich College, where her mother once worked and her son attended. She is a Vice-President of the Royal Commonwealth Society.

In 2006, she became an honorary graduate of the University of Exeter and was awarded the degree of Hon D.Litt (Exon) for contributions to the life of the United Kingdom. Lady Benjamin succeeded Lord Alexander of Weedon as Chancellor of the University of Exeter. She famously hugs graduates instead of traditionally shaking their hands during the graduation ceremonies.

In 2008 she was appointed a Deputy Lieutenant of Greater London. In the 2010 Dissolution Honours List she was appointed a Liberal Democrat Life Peer. In 2010 she was appointed Chair of Governors at The Isle of Sheppey Academy until her term in office expired at the end of 2011.

Benjamin's interest in education has also seen her on the "4Rs Commission" established by the Liberal Democrats to look into primary education in the UK.

Benjamin is vice-president of NCH Action for Children and Barnardo's, and was in the NSPCC's Hall of Fame. She runs the London Marathon to raise funds for Barnardo's and the Sickle Cell Society. She was a cultural ambassador for the 2012 Summer Olympic Games. In September 2011, she participated in the Great North Run. She features in the BBCs CBeebies animation Mama Mirabelle's Home Movies.

In July 2007 she spoke of what she saw as the low standard of children's television and in March 2013, she used a speech marking International Women's Day to warn of the impact on children of the availability of violent pornographic material online, claiming this was leading to the increasing objectification of women.

She is a Patron of the charity Beating Bowel Cancer, having lost her mother to the disease in 2009.

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

Colin Eggleston (died 2002 aged 60) would be 82 - credited as Film Editor for The Smugglers

Colin Eggleston was Film Editor for the 1966 Doctor Who story The Smugglers.

Patrick Tull (died 2006 aged 65) - credited as Kroton Voice in The Krotons

Patrick Tull  was a British stage, film and television actor.

He provided one of the voices of the Krotons in the 1968 story.

Tull performed in a number of episodes of well-known BBC television series in the 1960s, including Z-Cars, and its spin-off Softly, Softly, the soap opera Crossroads and the comedy Dad's Army. 

Tull acted in three films including Parting Glances (1986), directed by Bill Sherwood.

Roger Brierley (died 2005 aged 70) - 2 credits, including Drathro in The Trial Of A Time Lord (The Mysterious Planet)

Roger Brierley  was a British chartered accountant-cum-actor.

He appeared in many television productions over a forty year period. He twice appeared in Doctor Who, as Trevor in The Daleks' Master Plan (1965) and as the voice of Drathro in The Mysterious Planet (1986). 

Brierley appeared in the biopic Jinnah based on the life of Muhammad Ali Jinnah, and in the Granada television series Jeeves and Wooster as Sir Roderick Glossop. He was also in an Only Fools and Horses episode. Later work included portraying John Biffen in the TV dramatisation of The Alan Clark Diaries (2004). He also played the hotel managerin "Mr. Bean in Room 426".