Jeffrey Hansford

Jeffrey Hansford is a contestant in Series 57. After a close-fought debut against Grant Woods, Hansford scored another seven victories by comfortable margins to become the series' third octochamp. He also solved seven conundrums with exceptional speed, often buzzing in under a second, and showed visible disappointment on the one occasion he was beaten to the buzzer.

He has Asperger's syndrome and is known for his range of unusual mannerisms. These include saying "please" after almost every letter, declaring an exact numbers solution to be "zero away", and spelling many of his words using mnemonics. He appeared in an article in the Daily Express which compared him to Rain Man.

Reaction to him from fans of the show was extremely mixed, with some finding his mannerisms and obvious ability charming, while others were offended by his lack of social understanding and self-awareness.