There are a lot of various marines throughout the series, and although there are some with more major roles, the majority of them are extras and in some chapters there is a lot of them. We would like to cast a few people that have some range to be able to voice multiple marines in the chapters they appear in, to keep them all from sounding too similar. 

They range in age as well as professionalism, strength and courage so feel free to play around with some different voices to give us an idea of the range you can do.