Fan Casting Ax in Animorphs

Aximili-Esgarrouth-Isthill is an Andalite who is thought to be the only survivor of a bloody battle that took place in outer space. His ship has crash landed on Earth. He is the younger brother of Prince Elfangor-Sirinial-Shamtul, who gave the Animorphs their morphing ability and died shortly after. He considers Jake his 'prince' (similar to an earth military commander) and has a strong friendship with Tobias. The other Animorphs call him "Ax" because it is easier to pronounce. He often serves as the comedic relief (along with Marco) of the series.