The XYY Man

William "Spider" Scott
'The XYY Man' character
First appearanceThe XYY Man
Last appearanceThe Mosley Receipt
Created byKenneth Royce
Portrayed byStephen Yardley
In-universe information
AliasThe XYY Man
GenderMale
OccupationCriminal
NationalityBritish

The XYY Man began as a series of novels by Kenneth Royce, featuring the character of William (or Willie) 'Spider' Scott, a one-time cat-burglar who leaves prison aiming to go straight but finds his talents still to be very much in demand by both the criminal underworld and the British secret service. Scott has an extra Y chromosome that supposedly gives him a criminal predisposition – although he tries to go straight, he is genetically incapable of doing so.

Royce's original books were: The XYY Man (1970); Concrete Boot (1971); The Miniatures Frame (1972); Spider Underground (The Masterpiece Affair) (1973) and Trap Spider (1974), though he returned to the character in the 80s with The Crypto Man (1984) and The Mosley Receipt (1985).

Regular characters included Scott's long-suffering girlfriend Maggie Parsons; British secret service head codenamed Fairfax (the character's real name is Sir Stuart Halliman. In one episode, Fairfax identifies himself as 'Stuart' in a telephone conversation); Detective Sergeant George Bulman, the tenacious policeman who wants to see Scott back behind bars; journalist Ray Lynch; gay photographer Bluey Palmer; and KGB chief Kransouski.