Line of Duty
Many fans believed the AC-3 boss is "the fourth man" after something Jimmy Lakewell was supposed to have said.
Auditions are very much a covert process, according to the DC Chloe Bishop actor.
"I think it’s gonna shock people," teased Craig Parkinson, aka DI Matthew 'Dot' Cotton.
It's not just answers about "H" and "the fourth man" we're hoping for, either.
The Scottish actor plays English police officer DI Steve Arnott, and has admitted he's "not naturally good at accents".
Is this the end of the road for AC-12?
The BBC Two sitcom is returning for its third series.
It's time to celebrate Vicky McClure's iconic character for her fearless, flawed ways.
And they sound every bit as intense to film as they are to watch.