Home Alone IS Kevin McCallister.

It's easy to forget that he was part of an impressive brood of siblings, who are all seen running around their rather grand house as the movie opens.

Culkin's career and fall from grace are well documented and most peple know that his younger brother on screen was played by real-life sibling Kieran Culkin, who has had a decent Hollywood career of his own.

But only one of the on-screen kids went on to compete at two Olympic Games.

Forget all the booby traps and fiendish tricks, Kevin McCallister played on the hapless burglars. All he needed was his big sis by his side.

Hilary Wolf played Kevin's older sister Megan in a rare screen role. She gave up acting after Home Alone 2 in 1992 to concentrate on her real passion.

The sporting prodigy won the Junior World Judo Championships in 1994. Two years later she represented the United States at the 1996 and 2000 Summer Olympics. 

Watch Hilary in action next.

These days, Wolf has retired from the limleight but runs a Facebook page Not So Zen Mom. 

As well as numeorus posts about her own kids, two active young boys, she also shows off her impressive physique.

By contrast, Kevin's bullying big brother Buzz was never in the best shape and the actor Devin Ratray has parlayed that into a successful career.

Ratray has worked steadily in film and television since childhood, typically in similar roles to his iconic Home Alone moment. The previous year he had played a bully in Little Monsters, opposite The Wonder Years' Fred Savage.  

The child star returned for the Home Alone sequel and also played Mickey in 1993's Dennis The Menace.

Since then, he has had character parts in TV shows like The Good Wife and Law & Order. In 2007, he also shot a rather unlikely documenary, Courting Condi, following his own efforts to woo the then Secretary of State, Condolezza Rice. 

HOME ALONE IS ON CHANNEL 4 AT 5.30PM