I might be overthinking this, but it seems that Moroff (the Wampa-looking guy we saw in the BTS video) might be a little bit more important than just a simple background character.

Judging by his appearance on Jedha in the new trailer, and his action figure being packaged with a Shoretrooper, he might appear in the film twice.

I guess it’s possible that he might be part of Saw Gerreras resistance group alongside other alien characters that’s been named so far like Edrio ‘Two-Tubes’, and maybe even Bistan and Pao.

Btw, Edrio has been given some backstory;

He is a male Tognath mercenary pilot who flew alongside his eggmate, Benthic. The two shared the nickname derived from the breathing apparatus that allowed their Tognath physiology to process oxygen atmospheres. Edrio’s homeworld Yar Togna was conquered and occupied by the Galactic Empire, forcing him to flee as a refugee. Desiring to strike back at the Empire, Edrio and Benthic had allied with Saw Gerrera some time before the Battle of Yavin.