Theo is very immature 11 year old, and tends to cry when things don't go his way, such as if he loses when receiving the starter weak against the player's. Nevertheless, he is a skilled Pokémon trainer who connects well with his Pokémon. He is always one step behind the player and expresses constant frustration over that fact. His father is Cameron Caine, an electrician from Power Plant Eplison who used to work with Lucille Hajime before her disappearance and is also an Interpol Agent.