Koby is nicknamed The Panther by the Bratz because he's always on the prowl.
Koby is an outgoing, sporty boy with an easygoing outlook on life. He makes the most of his situations and is always up for adventure and new experiences. He appears in the Bratz: Starrin' & Stylin' film, working at the school's Audo/Visual Center since he knows all about fliming and video, as well as in the Bratz: Rock Angelz, Bratz: Forever Diamondz and Bratz: Girlz Really Rock! video games. His best friend is presumably Eitan.
Koby has medium-brown hair and powder blue eyes. He also has a light skin tone. Despite his appearance, it's hinted he's of Puerto Rican and African-American heritage.
His best friends seem to be Eitan and Dylan, and have shortened conversations with Cameron. His friendship to Bryce and Cade are yet to be evaluated. There has not been any communication to Thad what so ever. There has not been a evaluation of friendship to the girls either.