Star Wars: Rogue One - 12 Big Questions We're Asking After The First Trailer

We got to see the majority of the confirmed cast here - we appear to see Alan Tudyk's mo-cap droid, and there's a chance Riz Ahmed's Bodhi Rook is in there somewhere, though he is another one we can't confirm seeing yet - but the biggie that's missing is Mads Mikkelsen, whose character is subject to both excitement and mystery. 

It's fantastic to have someone of his calibre in the movie, and it means his role is probably quite an important one. He's already said he isn't playing a bad guy, though that could be subjective, while he's hinted his character will be called Galen. That's probably not Galen Marek, Darth Vader's apprentice from The Force Unleashed, but the signs are that he'll still be a key figure in the movie's plot. 

The rumours suggest he'll be a scientist in the ranks of the Imperial forces, one who comes onboard to solve a lot of problems with the Death Star, only to feel guilt about what he's created, as a Robert Oppenheimer-type figure. That's certainly the kind of role you could see Mikkelsen taking on, though we're going to have to wait a while longer to find out if it's true or not.