Adrian Dunbar says the 'Line of Duty' cast are "keeping their fingers crossed" that there will be a new series.
The 64-year-old actor is best known for playing Superintendent Ted Hastings in the hit police drama across six series, and admits he and his co-stars, who include Vicky McClure and Martin Compston, are keen to head back to Belfast to film another instalment.
Asked if they might "do another one", he replied: "Yes, there is every possibility. We're all keeping our fingers crossed that we'll hear something at some point.
"We all want to get back together again. We'd love to go back to Belfast again."
Adrian is hoping he and his co-stars can "have a bit of fun" shooting another series, after season six was filmed amid the coronavirus pandemic.
Speaking on 'Lorraine', he added: "The last time we did it it was in lockdown, so we were all in bubbles. We couldn't get out ... everything was shut. So we'd like to get back to Belfast for a bit of fun."
In August, Adrian admitted a new 'Line of Duty' series might focus on "something from past episodes", and teased that the 2021 finale - which drew in almost 17 million viewers - may "not be the last" audiences see of the BBC show.
He said: "My thinking is that, no, it's not the last you might see of us. I know that there are people who are talking and some plans, but I don't know exactly what would happen. I don't know what shape it might take. There was talk of a film, there was talk about maybe two 90 minutes, there was talk about three one hours, I don't know."
However, the 'Hear My Song' actor went on to explain he has "no idea" what the storyline would be for a potential new series, but he doesn't envisage it being "something new".
He said: "I have no idea [what it would be.] I'm sure it won't be something new. It would have to be something maybe from past episodes, that kind of rears its ugly head again. So there is all kinds of talk going on, and we're waiting to see if somebody gives us a green light and says yeah, it's actually going to happen."