If you watched The Silence last night, you may agree that Genevive Barr was mesmerising as a deaf girl who witnesses a murder.
Her character, 18 year-old Amelia wears a cochlear implant, but Genevive, 24, has revealed that she had to reply on lip reading to play the part, as she couldn't wear her hearing aid on set.
The actress was born deaf and relies on two hearing aids in order to hear.
She admitted: "There were so many difficult things - I couldn't wear my hearing aid on set because Amelia had a cochlear implant, so I was in a studio with 60 crew, a number of cast and extras, having to work out what was going on and I had to rely completely on lip reading.
"But that was just one challenge and I suppose I've faced so many challenges in my life before that I've come to enjoy a challenge now.
"And there was a huge emotional challenge as well, going from having a raging argument in one scene to a very emotional, tearful scene, to a very happy scene, so the emotional journey is quite mentally exhausting. But it was a challenge I relished and enjoyed every day."
Catch part two of The Silence tonight at 9pm on BBC1.
Read our interview with Amelia's best friend Izzy, here . Izzy is played by Rebecca Dunne who has a cochlear implant.