well there r some side characters...........like Shoichi Imayoshi, alexandra garcia they were all appealing characters but compared to GM they have less importance........h eh he he eh

Meh. Some of them.

Personally, the side characters are just as interesting to me as the main. In my opinion every character has their own special traits or whatever the case may be about them. I've never found any side characters to be uninteresting no matter the anime I'm watching. Whether it's KnB or another. Every character is special in their own ways whether they are on screen for 5 seconds, 5 minutes or even for just one episode. Every character brings their own special twist I suppose is a good word to every show no matter what. It may be pretty insignificant or small but, it's still there. I'm surprised to know that most side characters are looked down upon mainly because some find them "unappealing" or "they're not interesting enough." It kind of bothers me that some people view side characters this way but, personally I've always really enjoyed and liked them. I suppose you could say I personally take the time to appreciate every character in every anime no matter how "uninteresting" or "unappealing" they may be. Side or main, they're all appealing in my eyes.