They had been out on a Sunday bike ride when he lost his rag and attacked - punching them in the head and damaging one of the cyclists' helmets, which was worth £120 (NZD $202).
Kent Police investigated the incident, arresting Stephens "a week or two later". The altercation happened on Toys Hill, a steep climb and popular spot with cyclists.
Stephens was four when he was cast in The Omen, landing the role after attacking the film's director, Richard Donner, on command. He has had only two acting credits since: in a TV movie called Gaugin the Savage and, neatly, as a tabloid reporter in the 2006 Omen remake. His security firm went into liquidation at the end of 2016.
Previously speaking about playing Damien, he said: "It was good, but I was only five, a lot of it went over my head. It wasn't a big deal. It was good while it lasted."