No. Naruto is not a playable character.
No not in Super smash bros no
No, Jack Skellington is not a playable character in Super Smash Bros. Brawl.
No, Pichu is not a playable character in Super Smash Bros Brawl
You don't, because the Mii isn't a playable character. The Mii, however, will be a playable character in the next Super Smash Bros. games, Super Smash Bros. for Wii U and Super Smash Bros. for Nintendo 3DS.
WALL-E is not a playable character in Super Smash Bros. Brawl. You are most likely referring to R.O.B.
Midna is not a playable character in Super Smash Bros Brawl
She is, but not as a playable character.
No he is not a playable character.
He is not a playable character.
The fastest playable character in Super Smash Bros. Brawlis Sonic the Hedgehog.
No. Tom Nook is not a playable character in Brawl.
No. Master hand is not a playable character.