The Toymaker was a powerful individual who ensnared sentient beings in seemingly childish games, with their freedom as the stakes. However, the Toymaker hated to lose and the games were always rigged in his favour. He was an adversary of the Doctor and played at least three deadly games with him over millennia. According to the Sixth Doctor, "nobody knew" who the Toymaker really was. Not even the Doctor's TARDIS knew where the Toymaker originated from and what his species was.