We finally got a good look at Starsha when she's not dead.
They're putting allot more emphasis into making her seem uncannily graceful. Compared to the human female cast, you get more of a feeling that she probably is an alien of some kind. Her expression is interesting to, making her seem like a strange but ultimately sympathetic character.
We also have more old men. But none of them have the sheer facial hair power that the good ole captain has, so they're probably only going to be of marginal importance
Though I do wonder what Cosmo Force general Kotetsu (Stone) has to do in this kind of situation. The Gamilon are taking the very economical approach and bombing humanity with planet bombs in a war of attrition. Not allot of use for ground pounders in this situation. Though I suppose he could be in charge of ground based planetary defenses and fortifications.