Gilbert and Sullivan refers to the Victorian-era theatrical partnership of the librettist W. S. Gilbert (1836–1911) and the composer Arthur Sullivan (1842–1900). The two men collaborated on fourteen comic operas between 1871 and 1896, of which H.M.S. Pinafore, The Pirates of Penzance and The Mikado are among the best known.

Gilbert, who wrote the words, created fanciful "topsy-turvy" worlds for these operas where each absurdity is taken to its logical conclusion—fairies rub elbows with British lords, flirting is a capital offence, gondoliers ascend to the monarchy, and pirates turn out to be noblemen who have gone wrong. Sullivan, six years Gilbert's junior, composed the music, contributing memorable melodies that could convey both humour and pathos.

Their operas have enjoyed broad and enduring international success and are still performed frequently throughout the English-speaking world. Gilbert and Sullivan introduced innovations in content and form that directly influenced the development of musical theatre through the 20th century. The operas have also influenced political discourse, literature, film and television and have been widely parodied and pastiched by humorists. Producer Richard D'Oyly Carte brought Gilbert and Sullivan together and nurtured their collaboration. He built the Savoy Theatre in 1881 to present their joint works (which came to be known as the Savoy Operas) and founded the D'Oyly Carte Opera Company, which performed and promoted Gilbert and Sullivan's works for over a century.

Gilbert O'Sullivan (born 1 December 1946) is an Irish-English singer-songwriter, best known for his early 1970s hits "Alone Again (Naturally)", "Clair" and "Get Down". The music magazine Record Mirror voted him the No. 1 UK male singer of 1972.

Worldwide he has charted 16 top 40 discs; including six number one songs, the first of which was 1970's "Nothing Rhymed" (for further information see Gilbert O'Sullivan discography). His most successful recording period was between 1970 and 1980, though he has since recorded nine studio albums up to 2011's "Gilbertville". Speaking in 2009 he said; "I write pop songs. End of story. That's all I wanted to do. That's all I want to do. And that's all I continue to want to do. I have no interest in just touring, and living in the past."

O'Sullivan was born Raymond Edward O'Sullivan in Waterford, Ireland. In 1960, aged 13, his family moved to Swindon, Wiltshire, England. He attended St Joseph's and the Swindon College of Art, where he briefly played drums in a band called Rick's Blues, founded by Rick Davies (who later founded Supertramp) and where he developed his lifelong interests in music and art. According to a 1972 interview with O'Sullivan, Davies taught him how to play both drums and piano. Other semi-professional bands he played with while at college include The Doodles and The Prefects.

Sir Harold Malcolm Watts Sargent (29 April 1895 – 3 October 1967) was an English conductor, organist and composer widely regarded as Britain's leading conductor of choral works. The musical ensembles with which he was associated included the Ballets Russes, the Huddersfield Choral Society, the Royal Choral Society, the D'Oyly Carte Opera Company, and the London Philharmonic, Hallé, Liverpool Philharmonic, BBC Symphony and Royal Philharmonic orchestras. Sargent was held in high esteem by choirs and instrumental soloists, but because of his high standards and a statement that he made in a 1936 interview disputing musicians' rights to tenure, his relationship with orchestral players was often uneasy. Despite this, he was co-founder of the London Philharmonic, was the first conductor of the Liverpool Philharmonic as a full-time ensemble, and played an important part in saving the Royal Philharmonic Orchestra from disbandment in the 1960s.

As chief conductor of London's internationally famous summer music festival the Proms from 1948 to 1967, Sargent was one of the best-known English conductors. When he took over the Proms from their founder, Sir Henry Wood, he and two assistants conducted the two-month season between them. By the time he died, he was assisted by a large international roster of guest conductors.

Mitchell and Webb are a British comedy double act, composed of David Mitchell (born 14 July 1974) and Robert Webb (born 29 September 1972). They are best known for starring in the Channel 4 sitcom Peep Show and their award-winning sketch show That Mitchell and Webb Look. The duo first met at the Footlights in 1993 and collaborated for the 1995 Revue whilst studying at Cambridge University.

After graduating from university, the duo did two-man shows at the Edinburgh Fringe Festival and some sketch writing, including a series of Big Train and also for Armstrong and Miller's eponymous show. Their big break came in 2000 when they joined the writing team for the BBC Two sketch show Bruiser. The following year, the short-lived Play UK channel invited them to write their own sketch show, The Mitchell and Webb Situation. Despite the low ratings of the channel, the show was reasonably well-received by viewers. After the success, they wrote and starred in the Radio 4 sketch show, That Mitchell and Webb Sound – which was later adapted for television on BBC Two as That Mitchell and Webb Look. The first series of That Mitchell and Webb Look won the BAFTA for "Best Comedy Programme" in 2007.

Neil Richard Gaiman ( /ˈɡeɪmən/; born 10 November 1960) is an English author of short fiction, novels, comic books, graphic novels, audio theatre and films. His notable works include the comic book series The Sandman and novels Stardust, American Gods, Coraline, and The Graveyard Book. He has won numerous awards, including Hugo, Nebula, Bram Stoker, Newbery Medal, and Carnegie Medal in Literature. He is the first author to win both the Newbery and the Carnegie medals for the same work.

Gaiman's family is of Polish and other Eastern European Jewish origins; his great-grandfather emigrated from Antwerp before 1914 and his grandfather eventually settled in the Hampshire city of Portsmouth and established a chain of grocery stores. His father, David Bernard Gaiman, worked in the same chain of stores; his mother, Sheila Gaiman (née Goldman), was a pharmacist. He has two younger sisters, Claire and Lizzy. After living for a period in the nearby town of Portchester, Hampshire, where Neil was born in 1960, the Gaimans moved in 1965 to the West Sussex town of East Grinstead where his parents studied Dianetics at the Scientology centre in the town; one of Gaiman's sisters works for the Church of Scientology in Los Angeles. His other sister, Lizzy Calcioli, has said, "Most of our social activities were involved with Scientology or our Jewish family. It would get very confusing when people would ask my religion as a kid. I’d say, 'I’m a Jewish Scientologist.'" Gaiman says that he is not a Scientologist, and that like Judaism, Scientology is his family's religion.