The guy that you play as (with the dog) and the girl with red hair (no idea what their names are).
They're next to each other in this picture - (
http://www.gamingunion.net/rev/screens/tales-of-vesperia-characters.jpg)
Also, I'm still doing the first part thingy.. I need to understand it more. Also, how do you fight? (n00b). XD