Christianity (from the Ancient Greek: Χριστιανός Christianos) is a monotheistic and Abrahamic religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings. Adherents of the Christian faith are known as Christians.

Christians generally believe Jesus is the Son of God, God having become human and the saviour of humanity. Because of this, Christians commonly refer to Jesus as Christ or Messiah. Jesus' ministry, sacrificial death, and subsequent resurrection, are often referred to as the Gospel message ("good news"). In short, the Gospel is news of God the Father's eternal victory over evil, and the promise of salvation and eternal life for all people, through divine grace. Jesus stated that love is the greatest commandment: "Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind [and] thou shalt love thy neighbour as thyself."

Worldwide the three largest groups of Christianity are the Roman Catholic Church, the Eastern Orthodox churches, and the various denominations of Protestantism. The Roman Catholic and Eastern Orthodox patriarchates split from one another in the East–West Schism of 1054 AD, and Protestantism came into existence during the Protestant Reformation of the 16th century, splitting from the Roman Catholic Church.

Frederick Antony Ravi Kumar Zacharias (born 1946) is an Indian-born, Canadian-American evangelical Christian apologist. Zacharias is the author of numerous Christian books, including Gold Medallion Book Award winner Can Man Live Without God? and bestsellers Light in the Shadow of Jihad and The Grand Weaver. He is the founder and chairman of the board of Ravi Zacharias International Ministries, host of the radio programs Let My People Think and Just Thinking, and visiting professor at Wycliffe Hall of Oxford, where he teaches apologetics and evangelism. Zacharias studied as a visiting scholar at Cambridge University and held the chair in Evangelism and Contemporary Thought at Alliance Theological Seminary from 1981 to 1984. Commentator Chuck Colson referred to Zacharias as "the great apologist of our time."

Zacharias was born in Madras, India. Zacharias claims descent from a woman (of the Nambudiri Brahmin caste) and a low caste Boatman. Missionaries spoke to one of his ancestors about Christianity and thereafter the family was converted. Zacharias grew up in a nominal Anglican household, and he himself was an atheist until the age of 17, when he unsuccessfully tried to commit suicide by swallowing poison. While in the hospital, a local Christian worker brought him a Bible and instructed his mother to read to him out of John 14. Zacharias says that it was John 14:19 that touched him and caused him to commit his life to Christ.

Christopher Eric Hitchens (13 April 1949 – 15 December 2011) was an English American author and journalist whose career spanned more than four decades. Hitchens, often referred to colloquially as "Hitch", was a columnist and literary critic for New Statesman, The Atlantic, The Nation, The Daily Mirror, The Times Literary Supplement and Vanity Fair. He was an author of twelve books and five collections of essays. As a staple of talk shows and lecture circuits, he was a prominent public intellectual, and his confrontational style of debate made him both a lauded and controversial figure.

Hitchens was known for his admiration of George Orwell, Thomas Paine and Thomas Jefferson, as well as for his excoriating critiques of various public figures including Mother Teresa, Bill Clinton, Henry Kissinger and Diana, Princess of Wales. Although he supported the Falklands War, his key split from the established political left began in 1989 after what he called the "tepid reaction" of the Western left to the Rushdie Affair. The September 11 attacks strengthened his internationalist embrace of an interventionist foreign policy, and his vociferous criticism of what he called "fascism with an Islamic face." His numerous editorials in support of the Iraq War caused some to label him a neoconservative, although Hitchens insisted he was not "a conservative of any kind", and his friend Ian McEwan describes him as representing the anti-totalitarian left.

John Marwood Cleese (/ˈkliːz/; born 27 October 1939) is an English actor, comedian, writer and film producer. He achieved success at the Edinburgh Festival Fringe and as a scriptwriter and performer on The Frost Report. In the late 1960s he became a member of Monty Python, the comedy troupe responsible for the sketch show Monty Python's Flying Circus and the four Monty Python films: And Now for Something Completely Different, The Holy Grail, Life of Brian and The Meaning of Life.

In the mid 1970s, Cleese and his first wife, Connie Booth, co-wrote and starred in the British sitcom Fawlty Towers. Later, he co-starred with Kevin Kline, Jamie Lee Curtis and former Python colleague Michael Palin in A Fish Called Wanda and Fierce Creatures. He also starred in Clockwise, and has appeared in many other films, including two James Bond films as R/Q, two Harry Potter films and three Shrek films.

With Yes Minister writer Antony Jay he co-founded Video Arts, a production company making entertaining training films.