Colin Farrell has said he went undercover in his prosthetic make-up playing Penguin in the early days of production on The Batman.

The Irish actor stars once again as the infamous DC villain Oswald Cobb in the new Sky Original series The Penguin, recreating his version of the character viewers first met in Matt Reeves’ 2022 film starring Robert Pattinson.

After three hours a day in the make-up chair, he is unrecognisable as the star best known for films including In Bruges and The Banshees Of Inisherin.

“I’m left alone most of the time anyway,” Farrell told Sky News about being out in public – but said curiosity got the better of him when he first wore the prosthetics.

“I went to Starbucks once after we did the first make-up test, about six months before the film, the original Batman film,” he said. “I got a few side glances, but not nobody had any context or reference for it. But you couldn’t notice, I mean really, up-close and personal.”

For the Oscar nominee, playing Penguin had been on his bucket list.

Previously depicted by Danny DeVito in the 1992 film Batman Returns, Farrell said he appreciated that Reeves allowed space for him to put his own stamp on the comic book character.

“I mean when I heard that Matt Reeves wanted to talk to me about playing the Penguin – honest to God, for the film, I was so tickled,” he said. “Then I read it and I was kind of pissed off because it was only five scenes.”

Referring to the film’s other villain, played by Paul Dano, Farrell joked: “I got really greedy, and I thought, who is this Riddler fella?”

However, he has now “been spoiled with this eight-hour” series.

The Penguin moves away from the animated characteristics of DeVito’s iteration and centres itself instead in a Soprano-esque environment of the criminal underworld.

The limited series opens in the aftermath of the events of the 2022 film, with Oz Cobb trying to find his way to succeed in a flooded Gotham.

‘I didn’t know who I was or what I was doing’

The 48-year-old actor said his motivations behind choosing roles have changed over the years.

“It’s probably gotten purer… In a way, you would be forgiven for thinking that it would be the other way around,” he said.

“You would start from a place of purity and then it would get a little obfuscated with money and ambition and trying to maintain the idea of a career and all that stuff that we should be deeply suspicious of. And as essential as money is… it’s probably gotten purer.”

Farrell added: “I started off in a very playful place when I was 16, acting, and then I had a lot of success really young and it was very noisy. No complaints, I was very fortunate, but it was very noisy and I didn’t quite know who I was or what I was doing or why I was doing it.”

The actor said money came flooding in but his career hit a hurdle “very dramatically”.

“I was given the opportunity through whatever grace to kind of relocate the 16-year-old’s love and curiosity for just telling stories.

“I just want to do different things – not because I want to have this varied career, I don’t have a macro look at it like that, it’s just staying in the present.”

The actor said the arts have a special ability to help people deal with emotions and sort through real-world issues.

“It’s why drama is such an extraordinary tool for young kids who might be struggling in life in their early or mid-teens, to get together and tell stories,” he said. “You get to access certain emotions.

“You could ask certain questions of a character, but you’re always asking them of yourself as well, because you are essentially the filter that every character has to be born through. It’s more fun now than ever before, which is cool.”

The first two episodes of The Penguin are available to watch on Sky and streaming service NOW, with new episodes out every Monday