Sir Neville Francis Fitzgerald Chamberlain KCB KCVO KPM (1856 – 28 May 1944) was a British Army officer, and later Inspector-General of the Royal Irish Constabulary who resigned in the aftermath of the 1916 Easter Rising in Ireland. He is credited with inventing of the game of snooker while serving in Jubbulpore (Jabalpur), India in 1875.

Chamberlain was born into a military family, the son of Charles Francis Falcon Chamberlain and nephew of Neville Bowles Chamberlain. He was educated at Brentwood School, and the Royal Military College, Sandhurst.

Chamberlain was commissioned a sub-lieutenant in the 11th Foot on 9 August 1873, and promoted lieutenant in August 1874. In 1878, during the Second Anglo-Afghan War, he joined the staff of Field Marshal Sir Frederick Roberts, Commander-in-Chief of the British Army in Afghanistan. He was wounded slightly at the Battle of Kandahar. He served with Roberts at Ootacamund between 1881 and 1884. He was promoted captain in August 1885, and brevet major in November 1885. In 1890 he became Military Secretary to the Kashmir Government. He was promoted brevet colonel in 1894, and this was made substantive in February 1899. He rejoined Roberts in South Africa in December 1899, as "First Aide-de-Camp and Private Secretary". He was made a Companion of the Order of the Bath (CB) in 1900.

Jeffrey Segal (born 1 August 1920) is a British actor.

He made his first screen appearance, as an extra, in the film Jud Süß (1934). From the early 1960s onwards he appeared in many British TV series, notably Callan, Z-Cars, The Protectors, Terry and June, The Pallisers and Dad's Army.

He played the part of 'Arthur Perkins' in children's comedy series Rentaghost, a hotel guest - whose name was given, although this is never mentioned in dialogue, as Mr Heath in the credits; a hen-pecked husband and father of a babied spoiled brat - in the "Gourmet Night" episode of Fawlty Towers, and a civil servant in an episode in Yes Minister.

In the mid-1980s he appeared in the mini-series of Oliver Twist and Vanity Fair, and most recently in an episode of Jonathan Creek.

Derren Victor Brown (born 27 February 1971) is an English illusionist, mentalist, painter, writer and sceptic. He is known for his appearances in television specials, stage productions, photographic memory, and British television series such as Trick of the Mind and Trick or Treat. Since the first broadcast of his show Derren Brown: Mind Control in 2000, Brown has become increasingly well known for his "mind-reading" act. He has written books for magicians as well as the general public. His caricature artwork has received gallery exhibition and is available in a single volume documenting his portrait collection.

Though his performances of mind-reading and other feats of mentalism may appear to be the result of psychic or paranormal practices, he claims no such abilities and frequently denounces those who do. Brown states at the beginning of his Trick of the Mind programmes that he achieves his results using a combination of "magic, suggestion, psychology, misdirection and showmanship". Using his knowledge and skill, he appears to be able to predict and influence people's thoughts with subtle suggestion, manipulate the decision-making process and read the subtle physical and psychological signs or body language that indicate what a person is thinking.