Theo has been through a great deal. He ran away from his original home after learning that he was to be sold, something that he didn't want. He roamed Tokotna for several months as a wild Tokota, even encountering his soul companion, Alvin, and finding himself on the path to Dominance. 

    Eventually, he found himself at T.A.C.O where he came across Echo. The larege red dire found himself drawn to her sadness and wanted to make her feel better. They have been inseparable ever since. Theo has shown some more puppy-like tendencies since finding his new home but he would do anything for Echo, including protecting her with his life.