Cho: I'm up for Harold and Kumar 4

John Cho has said he would like to see a fourth Harold and Kumar film, with the pair as parents.

The South Korean actor, who stars in the three comedies as put-upon Harold Lee alongside Kal Penn as best friend Kumar Patel, admitted the duo would probably still shirk their responsibilities, if they had children in a fourth instalment.

"I'm in. Let's do it! I want to see Harold and Kumar with kids - kids and being irresponsible," he joked at the Star Trek Into Darkness premiere in Los Angeles.

The original 2004 comedy, Harold & Kumar Go To White Castle, spawned two sequels - Harold & Kumar Escape From Guantanamo Bay and A Very Harold & Kumar 3D Christmas.

John, who reprises his role as Hikaru Sulu in JJ Abrams' sci-fi sequel Star Trek Into Darkness, enjoyed returning to the world of Star Trek alongside co-stars Chris Pine (Captain James T Kirk), Zachary Quinto (Spock) and Zoe Saldana (Uhura).

"This is JJ's deal, it's his joint and I felt safe in his hands as we all did. He's the best film-maker in America working today," he said.

"Fans can expect one, a fantastic action movie. Two, they can expect something that's true to the Star Trek universe. And three, they can expect a journey into Captain Kirk's ethics. Into Darkness is indicative of his journey into his crisis of leadership, so it's going to be fascinating."