Disappointed in Divergent cast?

Just wondering if anyone else is disappointed with the cast I'm especially disappointed in Tobius or 4s character I imagined him tall muscular but with long black hair I thought the dauntless were supposed to have black hair piercing i didn't anyone with black hair or anything remotely to piercings I'm so upset with the decisions they made it's swaying my opinion on seeing the movie So I was just wondering if anyone else Is disappointed with the cast