James Nesbitt
Marcus Thurwell played a key role in series six of the BBC drama – even if we didn't get to actually meet him.
Many viewers believed he would be unveiled as "the fourth man".
"I've seen those eyebrows before," one viewer said after spotting a resemblance between a Spanish police officer and James Nesbitt.
And it included a whopping great lie told to the press earlier this year.
Bloodlands Is The Explosive New Drama From The Makers Of Line Of Duty – Here's What You Need To Know
James Nesbitt leads the cast of the four-part BBC series, executive produced by Jed Mercurio.
Will Adam and Tina still be together?
Currently, for every one female role, there are almost three male roles.
The stars are currently filming Series 2 in Manchester.
He has spent £20k on restoring his thatch.
The pair split two years ago.