Harry Potter's Evanna Lynch had a secret nine-year relationship with co-star

While the likes of Harry, Ron and Hermione first spring to mind when you think of the Harry Potter franchise, Luna Lovegood is also a much-loved character.

Luna may not have been a main character in Hogwarts, but fans certainly love her for the mystical and ethereal surrounding the character.

There was of course a few love stories in Harry Potter, but Luna was too focused on all things spiritual to be bothered about all that malarky.

A lot of film geeks thought she would have been a good match for Harry himself, but he of course ended up with Ginny instead.

Luna never got a love story, but the actor who played the character ended up striking up a relationship with someone in the Harry Potter world.

Lynch joined the cast for the fifth movie, Harry Potter and the Order of the Phoenix, in 2007.

Warner Bros.

Lynch wasn't the only actor to join the cast that year, as fans were also introduced to Robbie Jarvis - an actor who has since made appearances in the TV shows Casualty and EastEnders as well as the movie A Royal Christmas on Ice.

Jarvis was cast in the Order of the Phoenix as none other than James Potter - though don't be alarmed if you don't recognise him immediately.

Jarvis actually played a younger version of Harry's father, and was only featured briefly during a flashback scene in the fifth film.

In the short scene, Jarvis' character can be seen laughing as he uses a spell to disarm a young Severus Snape.

Though Jarvis didn't spend long on screen, his time on the set was enough for him to form a bond with Lynch which ended up lasting almost a decade.

After first meeting on set the pair secretly dated until 2015, when they decided to go public with their romance in a series of Instagram posts.

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Lynch captioned a picture of Jarvis on social media in May 2015 with the words: "Happy 29th Birthday to this little babe!! Sweetest boy! Off to see a show together #happybirthdayrobbie."

Photos were also shared to Instagram from a trip to Hobbiton in New Zealand, where the Lord of the Rings movies were filmed.

However, the pair separated in 2016 but have remained close friends.

Speaking at the premiere of Fantastic Beasts and Where To Find Them, Lynch said: "We're both vegans, so we go to a lot of vegan events together. So yeah, we're good friends."

In 2020, Jarvis made clear that their friendship continued into the new decade when he posted a picture of Lynch in honour of her birthday.