Rupert has accompanied actors Daniel Radcliffe and Emma Watson in all the eight movies of the Potter series. In fact, he started acting in stage shows in his school days.
Later, he openly admitted that school was never a place of interest for him.
It was one of those instant things where you're like, 'Oh, I really like this person.' You just have a connection with somebody, and then suddenly it's incredibly easy to talk to them.
It was one of those sort of situations," Daniel said about their relationship in a 2014 interview with Emma is very private about her love life and doesn't discuss her relationships in interviews.
His most recent appearance was in the comedy Moonwalkers, in which he starred as Jonny, a rock band manager who develops a staged moon landing.
Rupert Grint arrived at Craig's in Hollywood this week alongside his on/off girlfriend Georgia Groome (from Angus, Thongs and Perfect Snogging).
K Rowling spearheaded film franchise as a child, was closely followed by the equally talented Georgia.
It is unclear whether they have resumed their romance, or whether they have merely decided to remain good friends.
Grint stars as the dynamic and chaotic Charlie Cavendish in the show, alongside the likes of Luke Pasqualino (Our Girl), Lucien Laviscount (Scream Queens) and Ed Westwick (Gossip Girl).
The plot is inspired by a real-life heist in London, and the series tells the story of a group of twenty-somethings, up and coming hustlers who stumble upon a truck of stolen gold bullion and are suddenly thrust into the high-stakes world of organised crime.