Aoibhinn McGinnity, who plays sultry Trish on Love/Hate, said that the cast and crew have a "perfect dynamic" on set.
The actress spoke about the atmosphere filming the show at the RTÉ One autumn/winter schedule launch, saying: "It's great, everything goes so fast so you don't have much time to mess around, which is probably a good thing!
"But I think it's just the perfect dynamic in that we work really hard, we all care about it so much, it means the same thing to everyone, but in-between there is a lightness there that we can quickly muck about and then get back into it, so it's not too serious either."
The Monaghan-born star spoke what Trish gets up to in season five, saying: "She gets out a bit, herself and Siobhan have a few drinks, a few vodkas. Get to film dancing scenes with no music and that kind of stuff!
"She gets out a little bit more but there's definitely that kind of isolation there this year that's a bit more prominent with her. Her selfishness is her survival technique and it's kind of wearing thin this year, she's definitely a bit lonelier."
When asked if she gets recognised in public, the 28-year-old actress answered: "I get away with not being recognised a lot, but sometimes I do. And it's always very positive. People just want a picture or a Snapchat or whatever and that's kind of it, then they're gone, it's over, and you're like 'Ok, back to grocery shopping!'"
Check out all the new drama on RTÉ One this season: