Vector

Vector the Crocodile, usually just called Vector, is a character in the Sonic the Hedgehog series, and the leader of Team Chaotix. He and his team will do anything for money, as long as it doesn't break the law. He is a playable character in Mario & Sonic at the Olympic Games and Mario & Sonic at the Olympic Winter Games. He is a power character. The other members of Team Chaotix, Espio the Chameleon and Charmy Bee, are referees in this game. He is the only playable character in Team Sonic to not have his own trophy in Super Smash Bros. Brawl. However, Vector does appear as a collectible sticker. In Mario & Sonic at the Olympic Games and its Winter version, he takes his model from Sonic Heroes and is voiced by Dan Green, who also voices Knuckles the Echidna.

Profile
''Rough-and-tumble Vector is a crocodile that loves money, which means he wants that Gold Medal more than anything. With incredible Power skills, he'll perform well in the throwing events and, given his unique swimming stroke, can excel in the pool as well.''

Gallery
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Trivia

 * Coincidentally, Vector bears a resemblance to the Kremling species.
 * Vector is the only playable character in Mario & Sonic at the Olympic Games to not get his own trophy in Super Smash Bros. Brawl. He does get his own sticker though.
 * Vector, along with Espio the Chameleon and Charmy Bee have only appeared in three games before the Mario & Sonic games, Knuckles Choatix, Sonic Heroes, and Shadow the Hedgehog, although they were only playable in former two (not counting the secret co-op function of Shadow the Hedgehog).