Adrian Dunbar
Here's something to whet your appetite ahead of the new season's debut on Sunday.
So this is what they get up to when they're not catching bent coppers.
Line Of Duty Writer Jed Mercurio Labels Journalist A ‘C***’ For Writing ‘Lies’ About New Series Cast
The BBC drama's showrunner didn't hold back.
And no, he doesn't use them in real life.
Just wait until you hear Vicky McClure's 'H' theory.
All will be revealed on Sunday.
Hastings is one of the series' strongest characters.
How DID she do it?