Iron Man 3 has cast a new actor, and his name is Wang Xuequi. Who he? Well, he's the man set to play Dr. Lu in the upcoming superhero threequel, and if he's Tony Stark's doctor, he's a man worth knowing. 

Shown in the publicity snap above and the still below as some sort of surgeon – though if he is a surgeon, that would make him Mr. Lu, so that's... something – and from the looks of Rhodey and Pepper's faces, one that is set to reveal some pretty bad news from the Tony's-health-department.

If you're wondering where you've seen Xuequi before, consider his work in Warriors Of Heaven And Earth and Bodyguards And Assassins. And before you ask, Dr. Lu is an original character written by director Shane Black just for the film and not one you can bone up on in an obscure Tales of Suspense issue, alas.

After what feels like a mammoth shoot for Black and Downey Jr. and co. – complete with broken ankles – Marvel are currently wrapping things up with a few more days' shooting in Beijing before photography is finally over.

Iron Man 3 is out in the UK a week earlier than in the States, on April 26. Take a look at the teaser trailer below to whet your appetite...