
Shibugaki/ Alvin

Tamao/Theodore, Atom/Astro, and Kenichi/Ken
Their Nihongo names were Shibugaki and Tamao, but why were their English names Alvin and Theodore? Was it pure coincidence that

Photo of Chipmunks (just in case the picture does not display)
of these tree characters, one is named Alvin (far right) and the other theodore? If not a coincidence, then why was the other one's name, Simon, not likewise used for Atom's other schoolmate Kenichi, which became 'Ken' in the English dub? I do not know which of the two on the left is Theodore and which is Simon, but if Theodore is the bespecticalled one, that that is another coincidence.