The 55-year-old Scottish actor has returned as the psychopathic acquaintance of the original film's central gang of heroin addicts in new sequel T2 Trainspotting.

Robert says the new film, which follows the characters 20 years after Ewan McGregor's character Mark Renton betrayed them by stealing the money from a drug sale, shows a new side to his character, one he's keen to explore in another sequel based on another book by Trainspotting author Irvine Welsh.

"That is the first time you see maybe there is another side to this guy," he told reporters at the premiere of the new movie. "There is something quite emotional about that. He's capable of feeling something more just rage, so I am pleased that that element of Begbie has been shown. And maybe that sets up another film in fact because Irvine Welsh has written The Blade Artist."

The Blade Artist particularly focuses on the character of Begbie, who in the novel has moved to the U.S.

For the moment, however, Carlyle is just happy to have helped director Danny Boyle bring a second Trainspotting movie to the screen.

"It's been 20 years coming, it's been a long time coming," he said. "We always felt that we would do it, but as the years went by, you thought is this ever really going to happen."

T2 Trainspotting begins to hit theatres from 27 January (17).