In the anime, all the giant alien robots are called "Demon Air War Gods" or "Dark Sky Warriors" in Japanese. These robots are bio-mechanized with their own personalities, feelings, and unique powers. All the pilots of these fantastic machines are actually kidnapped children that were trained to be obedient, skillful, and murderous agents of their dark priestess. Though robotic in form, they are made through bio-mechanical incubation and have the ability to evolve over time to take even more powerful forms. All "Demon Air War Gods" recharge through special bacta-like pods which repairs and recharges their energies, but because they are also living machines they can eat as well. All their internal cockpits have crystal orbs which act as an interface with their pilot and also respond to human emotions to react accordingly to the pilots feelings.
A razão que eu acho que pode ser isso é porque uma pergunta muito semelhante foi feita no Reddit em esta discussão . Um pôster sugeriu Yamato Takeru como a resposta, com a qual o autor original concordou.