James Corden’s secret West End role revealed after Gavin and Stacey success as he stars in play for FREE [Video]

GAVIN and Stacey superstar James Corden has been secretly performing in a quirky West End Show after the success of the hit BBC One series’ Christmas special.

The Sun can reveal the actor, 46, has been staring for free in immersive experience You Me Bum Bum Train.

The hour-long walkthrough play, which is said to have triggered panic attacks in guests, takes place at a top secret location.

The venue, hidden inside a disused office block, is just metres away from unsuspecting shoppers in central London.

A source said: “James had been to see the show eight years ago when it was in London before so when he saw it was back he wanted to take in the madness himself.

“All actors in the play volunteer for free – regardless if you’re an A-lister …