Thorax

Thorax is a male changeling who is not like the others who are evils, he seem to be more nicer, because when he meet Spike he apologies to scared him and help when he was going to fall, he explain that he was also in Canterlot during the wedding of Candance and Shining Armor, but he refused to attack because he always wanted to learn friendship since he was a little changeling. He know that not everyone want to be his friend, because they are efraid of him and everyone think every changeling are evil, except him and they doesn't know, so he transform himself as a male Crystal Pony named Crystalhoof, and he make friend with everypony, but then he approached Flurry Heart he accidtally reveal himself to the pony, Spike didn't take his defense at first because everypony refuse to let him explain, heartbroken he go hide in his cave, Spike tried to apologies but he refuse at first, then Spike tell him that he was his only friend and go save him, when they return to The Crystal Empire everypony tried to chase him off again, but Spike convince them that he's not evil, finally after earing the song of Spike they finally welcome him in The Crystal Empire.