Harvey Spencer Stephens was plucked from obscurity when he was four years old to play antichrist Damien Thorn in the 1976 horror movie.

Starring alongside Hollywood stars Gregory Peck and Lee Remick as his parents, the London-born star made his mark with a terrifying performance in The Omen, including a famous scene where he continuously rides a tricycle in a circle, before watching calmly as his mother falls from a balcony.

According to The Sun, Stephens, 46, admitted two counts of ABH (assault occasioning actual bodily harm) and one of criminal damage when he appeared in Maidstone Crown Court last August (16) over an incident in Toys Hill, Kent - a popular route for Sunday bike rides.

The father of one jumped out of his Audi RS6 sports car and punched two cyclists, smashing one of the victim's helmets, the publication reported.

A source told the newspaper: "This was a road rage offence in which he brutally assaulted two middle-aged cyclists without provocation.

"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 ($146). Kent Police investigated the incident, arresting Stephens a week or so later.’

He is set to return to the court for sentencing on Friday (13Jan17).

The Omen was the only major film role for the now 46-year-old. In a 2007 interview he said: "It was good, but I was only five (when the film came out), a lot of it went over my head. It wasn't a big deal. It was good while it lasted."