Kaka is the son of Mzee Polo Piach. He lives in Piach's homestead with his younger brother, Oru and their mother, Reru.
Kaka is shown to be a calm young man, who rarely lets his feelings overcome him. He is deeply respectful to his parents and also very caring towards his younger brother.
His most recognizable features are the headdress that he wears on his head and the tribal tatoos across his forehead.
Kaka is able to think fast under stressful circumstances and can conjure magical barriers for use as a special defense.