Aloopah

Aloopah was grown in a lab alongside Alibi, Ini, and Gem, though his abilities differ from theirs in that he was designed for attack. He is hexapedal, with four 'arms' and two powerful hind legs, and he has a narrow, lithe body similar to a grayhound. His feet have a special padding which allows him to climb most surfaces, and his skin is a mottled black with mild color-changing abilities; he can only make it paler or darker. His body is marked with large, dull red rings, which he can make glow, intended to silently signal that a target had been taken down while also making it difficult to discern his silhouette. He has great strength, but in turn is rather fragile; having a target fight back would result in broken bones.

Aloopah did not have a stasis chamber like Alibi; as soon as he was able, he was removed from his pod and put into a bare cement room to be observed. After a few days of pacing, he heard Ini and Gem reach out to him with their minds, and learned they were being kept in a nearby room, assumed to be failures because of their reluctance to communicate telepathically with humans. They begged him to release them, and so he set his mind to that, noting the routines of the people sent to monitor him and the weaknesses in his enclosure. 

Breaking out was downright easy; nobody had prepared for such a sudden aggression, and there was little resistance while freeing Gem and Ini. While escaping, they sent out signals to creatures in statis pods, and Aloopah smashed the canisters of those still alive so they could escape as well. After fleeing, he struck out on his own; a few weeks later, he was shot in the shoulder by a hunter and retreated to an abandoned house. He lay there for days, slowly starving, until a human happened to be exploring the building and found him; they nursed him back to health, and once he was healthy, he vanished - though he checked in on the human occasionally for the rest of their life.