Benedict Timothy Carlton Cumberbatch (born 19 July 1976) is an English film, television, radio and theatre actor. His most acclaimed roles include Stephen Hawking in the BBC drama Hawking (2004); William Pitt in the historical film Amazing Grace (2006); the protagonist Stephen Ezard in the miniseries thriller The Last Enemy (2008); Paul Marshall in Atonement (2007); Bernard in Small Island (2009); Sherlock Holmes in the modern BBC adaptation series Sherlock (2010); and Peter Guillam in the spy thriller Tinker Tailor Soldier Spy (2011).

In February 2011, he began playing both Victor Frankenstein and his creature opposite Jonny Lee Miller in Danny Boyle's stage adaptation of Mary Shelley's Frankenstein. The play had a three-month run at the National Theatre. In late 2011, he played Major Stewart in Steven Spielberg's War Horse (2011). The film received five BAFTA nominations and six Academy Award nominations, including the Best Picture nomination in 2012. He also played Peter Guillam, one of the pivotal roles in Tomas Alfredson's Tinker, Tailor, Soldier, Spy (2011), which was nominated for three Academy Awards and 11 BAFTA Awards. Tinker Tailor Soldier Spy was also nominated for Best Picture in 2012.

Jonathan Stephen Ross, OBE (born 17 November 1960) is an English television and radio presenter, best known for presenting the BBC One chat show Friday Night with Jonathan Ross from 2001 until he left the BBC in 2010. Ross began hosting a new chat show on ITV1 starting 3 September 2011. Ross also hosted his own radio show on BBC Radio 2, and acted as a film critic and presenter of the Film programme. Other regular roles have included being a regular panellist on the comedy sports quiz They Think It's All Over from 1999 to 2006, and presenting the annual British Comedy Awards from 1991 to 2007, and 2009 onwards.

Ross began his television career as a programme researcher, before débuting as a television presenter for The Last Resort with Jonathan Ross on Channel 4 in 1987. Over the next decade he had several radio and television roles, many through his own production company, Channel X. In 1995 he sold his stake in Channel X, and embarked on a career with the BBC. In 1999, Ross took over presenting the Film programme from Barry Norman, and also began presenting his own radio show, while two years later he began hosting Friday Night with Jonathan Ross. For the chat show, Ross won three British Academy of Film and Television Arts (BAFTA) awards for Best Entertainment Performance, in 2004, 2006 and 2007. By 2006 Ross was believed to be the BBC's highest paid star. In 2005, Ross was made an Officer of the Order of the British Empire (OBE) for services to broadcasting. Ross has been involved in controversies throughout his broadcasting career. As a result, in 2008 he wrote a semi-autobiographical work titled Why Do I Say These Things?, detailing some of his life experiences.

Sherlock Holmes ( /ˈʃɜrlɒk ˈhoʊmz/) is a fictional detective created by Scottish author and physician Sir Arthur Conan Doyle. The fantastic London-based "consulting detective", Holmes is famous for his astute logical reasoning, his ability to adopt almost any disguise, and his use of forensic science skills to solve difficult cases.

Holmes, who first appeared in publication in 1887, was featured in four novels and 56 short stories. The first novel, A Study in Scarlet, appeared in Beeton's Christmas Annual in 1887 and the second, The Sign of the Four, in Lippincott's Monthly Magazine in 1890. The character grew tremendously in popularity with the first series of short stories in Strand Magazine, beginning with A Scandal in Bohemia in 1891; further series of short stories and two novels published in serial form appeared between then and 1927. The stories cover a period from around 1880 up to 1914.

All but four stories are narrated by Holmes's friend and biographer, Dr. John H. Watson; two are narrated by Holmes himself ("The Blanched Soldier" and "The Lion's Mane") and two others are written in the third person ("The Mazarin Stone" and "His Last Bow"). In two stories ("The Musgrave Ritual" and "The Gloria Scott"), Holmes tells Watson the main story from his memories, while Watson becomes the narrator of the frame story. The first and fourth novels, A Study in Scarlet and The Valley of Fear, each include a long interval of omniscient narration recounting events unknown to either Holmes or Watson.

Anthony Horowitz (born 5 April 1955) is an English novelist and screenwriter. He has written many children's novels, including The Power of Five, Alex Rider and The Diamond Brothers series and has written over fifty books. He has also written extensively for television, adapting many of Agatha Christie's Hercule Poirot novels for the ITV series. He is the creator and writer of the ITV series Foyle's War, Midsomer Murders and Collision.

Anthony Horowitz was born in 1955 in Middlesex, into a wealthy French Jewish family, and in his early years lived an upper-class lifestyle. As an overweight and unhappy child, Horowitz enjoyed reading books from his father's library. At the age of eight, Horowitz was sent to the boarding school Orley Farm in Harrow, Middlesex. There, he entertained his peers by telling them the stories he had read. Horowitz described his time in the school as "a brutal experience", recalling that he was often beaten by the headmaster.

Horowitz's father acted as a "fixer" for prime minister Harold Wilson. Facing bankruptcy, he moved his assets into Swiss numbered bank accounts. He died from cancer when his son Anthony was 22, and the family was never able to track down the missing money despite years of trying. Horowitz adored his mother, who introduced him to Frankenstein and Dracula. She also gave him a human skull for his 13th birthday. Horowitz said in an interview that it reminds him to get to the end of each story since he will soon look like the skull. From the age of eight, Horowitz knew he wanted to be a writer, realising "the only time when I'm totally happy is when I'm writing". He graduated from the University of York with a BA in English literature in 1977.

Martin John C. Freeman (born 8 September 1971) is an English actor. He is known for his roles as Tim Canterbury in the BBC's Golden Globe-winning comedy The Office, John in Love Actually, Arthur Dent in the film adaptation of Douglas Adams' The Hitchhiker's Guide to the Galaxy, Dr. Watson in Sherlock and Paul Maddens in Nativity!. He has been cast in the lead role of Bilbo Baggins in Peter Jackson's two-part adaptation of The Hobbit.

Martin Freeman was born in Aldershot, Hampshire, the youngest of five children. His father, Geoffrey, a naval officer, and his mother, Philomena separated when Freeman was a child, and when Freeman was ten, Geoffrey died of a heart attack. Freeman was raised Roman Catholic. As a child, Freeman was asthmatic, and had to undergo a hip operation due to a "dodgy" leg. He was schooled at a Catholic comprehensive before attending London's Central School of Speech and Drama.

In an edition of Who Do You Think You Are? aired on 19 August 2009, he discovered that his grandfather, Leonard Freeman, was a member of the Royal Army Medical Corps during World War II. Private L W Freeman, a Territorial Army volunteer in the 150(N) Field Ambulance Regiment, was killed in Northern France on 24 May 1940 in a Stuka dawn attack. His unit was evacuated from Dunkirk two days later.