I have mastered the following characters:
Template (almost my favorite
)
Bandit (I HATE HIM)
John (don't like using him, though)
Deep (but I hate him)
Henry (ugh)
Rudolf (I can be oh so cheap with him with infinite MP
)
Louis (I like his look but not his moves)
Firen (he's alright)
Freeze (I love this guy, if a projectile thrown by, say, Davis gets hit by one of his freeze projectiles, Davis will have fun dodging, because that blast will get frozen and sent back
)
Dennis (keep pressing attack!
)
Woody
Davis
So pretty much everyone.
All of their moves are pulled off in very much the same way. Except Template and Bandit, who have no moves
I mastered them through the magic of the readme and the random character.