Who Is Erin Carter? star Evin Ahmad: "She's a woman of many secrets!"

"Basically, the show begins with something mysterious happening. You see a woman, Erin, and she's with this little kid in a hotel room. Something is going on, and we don't know what, but we see that they're trying to hide or escape from someone or something. Then cut to a few years later, we're in Barcelona and we see Erin being a teacher, and everything is nice and beautiful — but then she and Harper go to the supermarket and a robbery happens, and Erin is in a situation where she has to protect her daughter. And in the fight, one of the robbers recognises her — or does he? So we learn that she is maybe not who she says she is..."

"Well, it's not good because she's a woman of many secrets! And the thing is, it's not just about her being secretive for the sake of it, there is actually a big threat to her life, her family and her daughter, so she could lose a lot of things. When you've been lying for seven years, you have to be quick — you have to keep up with that lie, and you have to protect that."

"Very fun — sweaty, warm and fun! There's just something about violence and choreography and badass female characters, I just like the rhythm when it comes to a fight. It was difficult, of course, but it was lovely to do it — and sometimes it hurt!"

"That's what was mesmerising to me about the script, because I think sometimes when we see women in movies or TV shows in an action context, we don't get to see the other part, the family side or the motherly side. I thought that was so beautiful and very interesting, because we get to see so many different sides of Erin. In one scene she's a badass, having this massive fight, and then she has a really beautiful moment with her daughter going to prom — it's the contrast that I really love."

"That was very fun for me. That's a very exciting way to act — every character has to have a secret anyway, and that's what I like to play, the face out and the face inside. I would say it was difficult when it came to playing a teacher, because that's so far away from me. Teachers, they're pretty cool! What they do is awesome, and playing a teacher gave me sympathy and respect for them — you actually have to teach the new generation some things! But also the idea of a teacher is so innocent — I remember at school, if you ever learned or heard anything about your teacher, that was a massive thing. Imagine if these kids found out what Erin does!"

"I loved doing the fights, I thought they were very cool. There's a scene in the mountains that comes later, with another character, Lena [played by Denise Gough]. I loved the relationship between Erin and Lena."

"Uh, yeah! I was almost in every scene, I worked every day, we worked six days a week sometimes. We didn't have that much time, so I was playing her and then I would go from set to rehearse a fight — there were so many things going on. And on top of that, I'm acting in in an accent, in a second language that I've never acted in in my whole life, so I was very tired!"

"Oh my God, everyone scared me! They were very precise about the accent. So I had my dialect coach with me every morning, every night, travelling back to my apartment, so it was a lot of work. But I have to say, it felt like being back to drama school, I feel like I've learned so much. There was one word I struggled with: 'corridor', because in Sweden you say 'korri-DOR'. It was ridiculous — eventually I started saying 'hallway'!"