Elton is Cathy's cousin and Mr. Smith's grandson. He can read people's minds, even if his ears are covered. When he comes to Earth for a visit, the MBC dislike him because he's the reason that they get into misunderstanding and embarrassment. Elton's also a substitute member of MBC and his suit is green. While he's waiting or not involved in the mission, he likes to lie down on the clubhouse's sofa or floating table. Sometimes, he likes to finish other people's sentences or giving some hints to help them. Cathy once kissed kim on a dare.