Depending on how you unlock them, possibly.
There is not playable character called Jet in Super Smash Bros Brawl.
Not a character.
krystal is not a playable character in brawl
As a playable character, no.
he is not a character in this game
toad is not feature in Super Smash Bros! in fact! Peach is shield with toad!
If you're thinking of the Sonic Riders character, you cannot unlock him in Brawl.
Dr mario is not an unlockable character in brawl.
He is not a playable character. you can only unlock a trophey of him
No. He's not a playable character.
No.
Toad is not a playable character.