“The Houdini story was a huge draw for me. It’s magic and I love magic and anything fantasy and I also like reading about muses, people who inspire the icons. And Bess Houdini is certainly that – she was behind the scenes and was the glue of the whole group.

“It has been great to learn about her struggles and triumphs.

“They are definitely making the production more sexy. Bess is independent and she doesn’t get pushed around but she also has a vulnerability to her.”

“I have to do one vanishing act – disappearing and reappearing. But it’s not as dangerous as what the others have to do on the show.

“I want to do more movies and theatre and we are hoping Houdini will transfer to America too.

When I am in LA I work on my acting and my accents but I do writing and yoga teaching. I have a lot of hobbies out there.”

“All the older actors warned us, ‘It’s not going to be like this when you leave, enjoy it while it lasts’.

“But I definitely didn’t take that on board because I was having too much fun. I don’t like to go through life anticipating bad things.

“So when it ended, yes it was difficult. But making the decision to stick with acting was the hardest thing as I finished school at the same time as I finished Harry Potter and I had that thing of, ‘Should I go to college, should I go a completely different route, go be a teacher or something or study art?’

“That was difficult, not knowing as I felt everything was resting on that decision.

“But then I just thought, ‘You know what? For now I want to be an actor and that’s all that matters.’

“Once I decided that it was easy to go through all the challenges and knocks.”

“Jason Isaacs who played Malfoy advised me to go to LA.

“He told me, ‘Make sure you want it. If you want it hard enough you can tough out everything else’, and I feel that’s true.”

“We’ve had a support network of all the other younger actors in the films because it doesn’t feel like I am going through it all alone or I am lost.

“I can always call them up and talk to them about things.”

“We keep in touch by email with most of them and we support each other.

“Jessie Cave does a lot of comedy and we always go and see each other’s shows. I saw Dan Radcliffe in the West End and some of the cast are coming to see me in Houdini.”

“It’s very different to Ireland. LA is much bigger and it can be quite a lonely place. It’s not as friendly as Ireland and you have to put yourself out there too.

“I do a lot of yoga and acting classes and writing and that keeps me busy.

“But I miss the friendly, homely atmosphere of Ireland.

“It was something that happened gradually – I thought I would be moving to London and then I met a manager and agent out there and there just seemed to be more opportunities.

“I am very career-focused so I felt that wherever I went I would make friends and it would be fine.

“So at first I decided to go for three months to see how it was and I really liked it so I stayed on. I got my visa and decided to stay for a while and it’s been two years now – I can’t really believe it.”

She still talks to people from Harry Potter, primarily those “in the same boat” – those with supporting roles who still had a huge amount of attention from fans. “We still had that pressure on us, but at the same time when we came out of the films, it’s not like our career was made . . . it was a bit of a contradiction, where you get this massive success and high profile, but don’t have as much credibility in the industry.”