I know that the Romans used auxiliaries and mercenaries from foreign cultures as they continued to expand their territories, but I always wondered if people of color (non-caucasian) were ever hired into the regular legions. I recently began to wonder this because in popular media, Roman legionaries were always portrayed as solely European caucasians. Just to be clear, I'm not a racist nor am I trying to invoke some kind of racial debate about Ancient Romans, I'm genuinely curious about this as I've never actually thought about it before.
Edit: Are the comments getting deleted? I tried replying to some only to find that all of them are gone :S
There is certainly more to be said, but you may be interested in the following past answers:
To what extent were the Romans in contact with native African tribes? How deeply did Rome explore, but not necessarily conquer or colonize, the African continent? answered by /u/cleopatra_philopater
I've read and heard several times that there was no racism in antiquity, or even that there was no racism until the 16th century. I simply cannot believe that, is it really true? answered by /u/toldinstone
Was there racial discrimination (especially towards, but not limited to, black Africans) in Ancient Rome? answered by /u/grashnak