Zenon's interest in practical jokes started at the age of eight, when he sold fake raffle tickets for an non-existent prize. He worked in a joke shop in Blackpool before travelling the Mediterranean as a street magician. He was once sacked from a job as a croupier in a Denmark casino, on the grounds that he was cheating.
After spells in comedy clubs and Forces entertainment, Zenon moved to children's television in the early 1990s, appearing regularly in the BBC shows Tricks 'n' Tracks and Tricky Business. He subsequently wrote and produced the Children's ITV game show Crazy Cottage.
More recently he has become popular for his series of one-off magic specials on Channel 4.