Line of Duty fans have furious reaction to the season five trailer

Who is H in Line of Duty?

The season five trailer for Line of Duty dropped over the weekend, and saw everyone's favourite AC-12 squad – Steve, Kate and Ted Hastings – attempt to uncover a huge conspiracy within the police. However, the trailer also seemed to tease that the person behind the police corruption – who has the codename 'H', was none other than DCI Ted Hasting himself – leading fans to have the same furious (and hilarious) reactions to the teaser.

Stephen Graham is the main guest star in the new series

One person wrote: "Please don't making Hastings 'H', I don't think I'd ever be able to trust a TV show ever again if you did," while another added: "Argh!!! When?!! WHENNNNNN?!! If Hastings turns out to be H I genuinely don't know if I'll get over it. Ever. #notyoufella." A third person addressed the creator of the show, Jed Mercurio, writing: "I swear to god, Mercurio, if you make Hastings a baddie, you and me: we're finished! Finished I tell you!" Speaking about the upcoming series himself, Jed wrote: "We're all thrilled with how well series five of #LineOfDuty has come together. Hopefully it won't be too long before it's on @BBCOne."

READ: Line of Duty season five is going to be VERY different

Loading the player...

Speaking about what fans can expect from the new series, Steve Arnott actor Martin Compston told Press Association: "Expect the unpredictable, as ever. That is pretty much it. It will be a big ride this year, it will be good." He also opened up about swapping his Scottish accent out for his English one in the show, explaining: "When you do an accent you do the voice and you immediately hear the character because it's separate from you, but at the end of the day it's a lot easier when you can go in and talk in your own accent or a clipped version of your own accent."

READ: Line of Duty confirms huge mystery reveal in season 5