Happy Valley's Rhys Connah has described various fan theories swirling around the crime drama's series finale as "stupid".

After ratcheting up some brutal tension over the past five weeks, screenwriter Sally Wainwright's BBC drama is about to wrap up for good this coming weekend, with Connah's teenage character Ryan Cawood caught in the middle of a manhunt for his killer dad Tommy Lee Royce (played by James Norton).

Connah told the BBC: "One of my mates at college, he loves the show. So when we started filming, he wrote a big list with all the ideas of everything he thinks is going to happen.

preview for Happy Valley | Series Finale Trailer | BBC

Related: Happy Valley season 3 theory suggests tragic ending for Catherine and Ryan

"Every time he watches an episode, he'll sit there with his notes and go, 'It happened, right, what's going to happen now?' He's come up with some mad theories. I love hearing them. I love hearing everyone's opinions of the show.

"A lot of the theories are a bit stupid, so sometimes I do laugh," Connah added.

"But sometimes when they're saying random stuff, one of them will list five different plot points, all of which happened exactly, and I'm just like..."

happy valley season 3, sarah lancashire as catherine cawood
BBC

Related: Happy Valley just let itself down with one specific storyline

Connah, who previously appeared opposite Jodie Comer in The White Princess, also suggested that Happy Valley's filming tactic means he doesn't know "exactly how it ends".

"I did hear somewhere that they've made multiple endings, but that's not true," he explained.

"What they've done is, as a lot of shows do – there is one ending, but they've filmed it in different ways, different ways of how characters say things, the emotions behind them, the angles, the framing, because how much that stuff can affect a scene is more than most people would think."

Happy Valley season 3 concludes this Sunday (February 5) at 9pm on BBC One. The show also streams on BBC iPlayer.

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Reporter, Digital Spy 

Dan is a freelance entertainment journalist. Beginning his writing career in 2014, Dan's work first graced the pages of cult publications Starburst magazine and Little White Lies before moving onto Total Film, Digital Spy, NME and Yahoo Entertainment

In the film and TV universe, he kneels at the altar of Jim Carrey, Daniel Plainview, Mike Ehrmantraut and Paulie Walnuts.