All three of the champions were Ok.
They weren't too striking at first, but they've grown on me.

I didn't see enough of Voldemort to get any real impression.
I guess that means he was perfect.

Hated Moody.
I pictured short, dark hair; a long, thin face; and a very large nose.
I especially hated the glasses, but I don't know what else they could have done.
Yes, I do. Computer graphics can do anything these days.

Also, "new characters" is a matter of opinion.
All the kids have grown up, to the point where I would call them "new."
Especially the twins.
In the first movie I thought they were extremely dorkey.
They have really grown up.