Timothy "Tiff" Needell (born 29 October 1951 in Havant, Hampshire) is a British racing driver and television presenter. He is best known as a former co-presenter of Top Gear and current co-presenter of Fifth Gear.

Needell attended Ottershaw School followed by City University, London where he achieved an Honours Degree in Civil Engineering. Hired by George Wimpey & Co, his day job was as a Structural Design Engineer.

Needell first raced at a driving school at Brands Hatch in 1970. He progressed to Formula Ford, his progress assisted by the use of a Lotus 69 FF he won in an Autosport magazine competition. He later sold his Lotus and used the money to buy and race an Elden Mk10. Needell's Formula Ford period culminated in his acquiring a Crossle 25F with which he won the Kent Messenger FF Championship after competing for only half of the remaining season. This success landed him a partly paid drive in the Formula Ford 2000 Championship in a Hawke chassis provided by McKinstry Racing. Needell was completely dominant in that car and series which provided him with the springboard into Formula 3. The remainder of the 1970s saw Needell as a front runner in the British Formula 3 series and then in the Aurora British Formula One championship. In 1979 he was unable to graduate to the F1 World Championship due to the lack of the correct licence, but he was back in 1980, driving two Grands Prix for Ensign, qualifying for the Belgian Grand Prix at Zolder. However, he had an engine problem and did not finish the race. He subsequently failed to qualify for the Monaco Grand Prix.

Jeremy Charles Robert Clarkson (born 11 April 1960) is an English broadcaster, journalist and writer who specialises in motoring. He is best known for his role on the BBC TV show Top Gear along with co-presenters Richard Hammond and James May. He also writes weekly columns for The Sunday Times and The Sun.

From a career as a local journalist in Northern England, Clarkson rose to public prominence as a presenter of the original format of Top Gear in 1988. Since the mid-1990s, Clarkson has become a recognised public personality, regularly appearing on British television presenting his own shows and appearing as a guest on other shows. As well as motoring, Clarkson has produced programmes and books on subjects such as history and engineering. From 1998 to 2000 he also hosted his own chat show, Clarkson.

His opinionated but humorous tongue-in-cheek writing and presenting style has often generated much public reaction to his viewpoints. His actions both privately and as a Top Gear presenter have also sometimes resulted in criticism from the media, politicians, pressure groups and the public.

The Stig is a character in the British motoring television show Top Gear. The character plays on the anonymity of racing drivers' full-face helmets, with the running joke that nobody knows who, or indeed what, is inside the character's racing suit. The character was the creation of presenter Jeremy Clarkson and the show's producer Andy Wilman. "Stig" was a nickname for new boys at their old school, Repton. Although there is one "main" Stig, there are several "spin-off" Stigs, referred to by the presenters as "The Stig's <usually a reference to where the presenters are located> cousin."

The Stig is responsible for setting lap times for cars tested on the show, as well as instructing celebrity guests in the show's Star in a Reasonably Priced Car section. (see "Role" below) There have currently been three Stigs—the first Stig started on episode 1, but was killed off in the first episode of series 3. The second Stig appeared in the next episode, and lasted until series 15. The third Stig took over from December 2010.