The intro video for Super Smash Bros. Brawl has been leaked and it confirms two other characters.
The interesting thing about this video is that it shows more of Olimar, which is always awesome. Furthermore, it confirms the return of Ness and Marth, who I thought were replaced by Lucas and Ike respectively. This is interesting, since I thought there would not be clones. I guess we will see if things have been changed up a bit.