Fans of the hit BBC One drama Line of Duty are gearing up for this Sunday's finale where they hope to finally find out who 'H' or 'The Fourth Man' is.
Now in its sixth series, the programme follows the cases looked after by anti-corruption department's AC-12, as they hunt out 'bent coppers' helping organised crime groups.
'The Fourth Man' was revealed in series 5 when H turned out to actually be four people, with H being four dots in morse code.
Gill Biggeloe, Dot Cottan and Derek Hilton have already identified.
But we want to know which police officers Mirror readers believe are also are bent, before the show kicks off at 9pm on Sunday.
If you can't see the survey, click here.
According to Ladbrokes, the three favourites to be H are Marcus Thurwell, with odds of 7/4, Philip Osborne (5/2) and Patricia Carmichael (3/1).
Jessica O'Reilly of Ladbrokes told the Mirror: "Marcus Thurwell's shot to the top of the betting as fans aren't convinced he is dead.
"It also seems unlikely James Nesbitt would sign up to a role where he has only played a picture to date."
She added: "However, we can't rule out bent copper Philip Osborne being unmasked as the fourth man, but punters would love to see the smug smile wiped off Patricia Carmichael's face if she's found out to be pulling the strings from the inside."
*Join the debate below if you've got a theory of who H is
