Jamie Campbell Bower!
Yup, that's the guy who has been in Sweeney Todd, Harry Potter and The Twilight Saga. He's been cast to play Jace in The Mortal Instruments. At least we know one thing, it won't be badly acted. I'm not sure if he's perfect but I do believe in the casting decisions so far so this should be a good thing.
Don't forget that playing our Clary is the lovely Lily Collins:
Looks like this movie is finally coming together!
What do you think of the casting choice?