Bring Her Back star has an insanely famous grandad and fans are only just realising

The Philippou brothers' highly-anticipated horror film Bring Her Back is out in the UK tomorrow (July 26), two years on from their critically-acclaimed cinematic debut, Talk To Me.

Bring Her Back tells the story of two siblings, Piper and Andy, who are fostered following the untimely death of their father. However, their new caregiver Laura (Sally Hawkins) is still grieving the loss of her own daughter, and acts in increasingly odd ways after their arrival at her home.

Among the cast are rising Australian stars Jonah Wren Phillips (Sweet Tooth) and Sora Wong, alongside British actor Billy Barratt.

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Billy, who plays Andy in the film, may already look familiar to some due to his long list of acting credits which includes appearances in Kraven the Hunter, Sharknado 5 and Invasion. He became the youngest actor ever to win an International Emmy Award for Best Actor when he was just 13 thanks to his role in BBC drama, Responsible Child.

However, what fans may not know is that Billy has an insanely famous grandad. The star is related to Welsh music icon Shakin' Stevens (real name Michael Barratt). The music legend's hits include Merry Christmas Everyone, Because I Love You and Give Me Your Heart Tonight.

He isn't the only famous family member either. Billy's dad is a sought-after mix engineer called Dean James Barratt who has worked across film and TV and with some big music acts too, including Jess Glynne and Craig David. Shaky, as he is known by fans, is Dean's dad.

Meanwhile Billy's mum is also a famous face. Carolyn Owlett is a model, TV and radio host and singer in The 411. She also takes on the role of manager for Billy.

Ahead of Bring Her Back's UK release, Billy shared how he got into the mindset for his character Andy. In an interview with Deadline, he revealed: "There were moments where Danny [Philippou] would basically lock me in a room by myself, and he goes, ‘Just try and get in character.’

"He shut the door, I’m not allowed to leave. I ended up just sitting there with no phone, no nothing — which is great, by the way. I just sat there for ages, and then when I came back outside of that door, back into the scene … you just feel like you are there are in it."

He admitted that the technique had actually developed him as an actor, adding: "Seeing the effect it had actually helped me so much, not just in the script but in future projects as well. So thank you, Danny."

Bring Her Back releases in UK cinemas July 26