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The Sister: Premiere date, cast and everything you need to know about the Russell Tovey drama on ITV

The Sister cast Bertie Carvel, Russell Tovey and Amrita Acharia
Bertie Carvel, Russell Tovey and Amrita Acharia in "The Sister." (Image credit: ITV)

There are thrills and chills aplenty in ITV’s new must-see four-part drama The Sister.

Coming to ITV this fall and then to Hulu (opens in new tab), The Sister explores the fallout when a man tries to forget a terrifying incident from his past, only for his memories to return with a vengeance when an old acquaintance re-enters his life.

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The Sister release date: when will The Sister air?

ITV has revealed that The Sister is part of its autumn/fall line-up and we will update here when the TX date is confirmed. It will then air on Hulu.

The Sister plot: What is it about?

Acclaimed British actor Russell Tovey — whose credits include Him & Her, Years and Years and Flesh and Blood — heads the cast as troubled Nathan, who has battled for years to hide a dark secret involving the death of a young woman at a party. 

Now happily married, Nathan’s world is turned upside down when Bob, a face from the past who is the only other person who knows what happened, suddenly arrives on his doorstep and delivers shocking news, which leads Nathan to make some challenging decisions in order to save his family.

“Nathan is a quiet kind of guy,” says Tovey. “Something happens on a night out and he tries to forget about it. The show starts after 10 years have passed and it all comes crashing back.”

The Sister cast: who else is appearing in the series?

Doctor Foster and The Pale Horse star Bertie Carvel co-stars as enigmatic Bob, while Game of Thrones’ Amrita Acharia play Nathan’s wife Holly and Bodyguard’s Nina Toussaint-White is Jackie, Sex Education’s Simone Ashley is Elise, Benidorm’s Paul Bazely is Graham and Unforgotten’s Amanda Root is June.

The Sister ITV trailer: is there one?

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Yes! The dark and brooding teaser shows a disheveled Bob ringing Nathan’s doorbell. When Nathan asks what he is doing there, Bob ominously says, “They are digging up the woods” and later says, “They only need a fragment of DNA, if there is anything left they will find it.” Nathan is later seen telling Bob to stay away from him but then he breaks down and screams, “I didn’t hurt her!” What have they done?!

How many parts is The Sister on ITV?

The Sister comprises four parts.

What else do we know? 

The drama is penned by Luther creator Neil Cross and is inspired by his 2009 novel "Burial."

"Nathan, Bob and Holly have been with me for many years," says Cross. "It’s one of my favorite stories: a tale of psychological suspense, of guilt and ghosts and murder. Oh, and love. Always love. Our job is to make viewers want to sleep with the lights on. We're looking forward to it."

Caren has been a journalist specializing in TV for almost two decades and is a Senior Features Writer for TV Times, TV & Satellite Week and What’s On TV magazines and she also writes for What to Watch.


Over the years, she has spent many a day in a muddy field or an on-set catering bus chatting to numerous stars on location including the likes of Olivia Colman, David Tennant, Suranne Jones, Jamie Dornan, Dame Judi Dench and Sir Derek Jacobi as well as Hollywood actors such as Glenn Close and Kiefer Sutherland.


Caren will happily sit down and watch any kind of telly (well, maybe not sci-fi!), but she particularly loves period dramas like Call the Midwife, Downton Abbey and The Crown and she’s also a big fan of juicy crime thrillers from Line of Duty to Poirot.


In her spare time, Caren enjoys going to the cinema and theatre or curling up with a good book.