Mario
The plumber star of the series. His kart is average across the board.
Luigi
Similar to his brother, Mario, his kart also have average status across the board.
Peach
Princess of the Mushroom Kingdom. She has the fastest of all the karts available; however, due to the speed, her kart lacks the ability to turn efficiently.
Toad
Below par speed-wise. His kart turns the best, but often loses control when hit by larger opponents.
Yoshi
Yoshi is the green dinosaur from Super Mario World. His kart has the highest acceleration.
Bowser
Bowser is the king of the turtle-like creatures called Koopas. His kart is good at crashing into other karts, due to the size.
Donkey Kong Jr.
The son of the famous gorilla, Donkey Kong. His kart's atrributes are similar to Bowser's.
Koopa
Member of the turtle clan that follows Bowser. Koopa's kart is easy to control, and can squeeze inbetween other karts. However due to his size, he gets knock away when crashed into by other karts.