Character: Ron Weasley
Date of Birth: August 14, 1988
First appeared in Harry Potter: aged 12
Estimated fortune: €23m
•If Radcliffe plays the flamboyant actor, and Watson the clever clogs, Rupert Grint is without a doubt the laid-back one.
While the other two are more focused and precise, Grint has been more inclined to ride the rollercoaster that is the Harry Potter experience.
He owns a working ice cream van, a hovercraft, a bright orange Range Rover and a Mini fitted with special Lamborghini doors. He once bought a coin-operated fortune-telling machine from a fairground, learnt to ride a unicycle and recently bought two miniature donkeys to go with his miniature pigs.
"I do, kind of, spend a lot," he says. "And just on stupid things, because I don't really know what to do. What are you supposed to do? It just seems like way too much. We don't deserve it, at all, for what we do."
However, not all his spending has been as frivolous. He has a flat in east London and also owns an estate near his parents Hertfordshire home, said to be worth around £5m.
Grint has the children's news programme Newsround to thank for his fame.
His dad Nigel, a memorabilia dealer, and his mother Jo filmed him rapping about why he'd be perfect for the role as Potter's red-headed sidekick after the show aired a casting call in 1999.
He took to life in front of the cameras with ease.
"At that age you're fearless," he says. "Nothing bothers you."
However, as his teenage years progressed, his confidence began to retreat. "There comes an awkward stage when you're growing up," he says, "when you're just really aware of yourself, and quite self-conscious. And I did kind of pull back a little bit."
"He lived his teenage years under a spotlight," said Potter producer David Heyman, "but one of the many things I love about Rupert is that he just gets on with it. He enjoys life."
Nonetheless, of the three lead actors, he has constantly won the praise of critics and co-stars, and was described by John Hurt as the "born actor" of the bunch.
Of the three Potter stars, Grint has the more accomplished acting CV after taking on several leading film roles, including the 2002 British comedy Thunderpants, the 2006 coming-of-age story Driving Lessons and the 2008 thriller Cherrybomb, where he plays a bad boy who stops at nothing to get the girl he covets.
So while Grint may not have matched the earning power of his co-stars so far, his future acting career seems far more bankable.