Unknown Irish actor Jack Reynor has been cast as the new male lead in Transformers 4.

The 20-year-old will take over from Shia LeBeouf, who quit the franchise after the last Transformers film, Dark of the Moon.

Director and producer Michael Bay confirmed the news on his website saying: “I just hired a great new actor for Transformers 4 to star against Mark Wahlberg. Jack Reynor, he is an Irish kid that came to America with 30 bucks in his pocket. Pretty ballsy. Seriously who does that? Anyway I spotted him in a great little Irish movie WHAT RICHARD DID. This kid is the real deal.’

‘Transformers 4, is not a reboot. That word has been floating around on the net.’

‘This movie takes place exactly 4 years after the war in Chicago. The story makes a very natural transition, and reason as to why we have a whole new cast. This Transformers will feel very different than the last three. We are embarking on a new trilogy.”

Based on the robot toy franchise, it is expected to be released in June 2014.