Your question can be interpreted one of two different ways:
Are Sith that look like Han Solo the same species of The Galaxy Far Far Away "human" as Han Solo?
Are Sith that look "human" the Homo Sapient species from Earth?
I specifically asked you to clarify what you meant in a comment in 2014 (which you never did):
Just to clarify: by "Homo Sapiens" and "humans" you mean humans from Star Wars galaxy, correct? (e.g. those living on Coruscant/Corellia/Tattooine/etc....) – DVK-on-Ahch-To Jan 22 '14 at 13:26
If you meant #1 (are they TGFFA humans); the two questions are NOT duplicate (nor does Valorum's answer on the other question answers yours). OTOH, my answer, which you accepted, answers it fully.
If you meant #2, then they are duplicates. I will assume that this wasn't what you meant because you accepted my answer, which in no way discussed Earth humans, despite your question wording mentioning Homo Sapient - which I assume was just bad wording.
As such, absent clarification from you:
- I edited your question to specifically be about TGFFA humans and not Earth humans.
- I re-opened it since neither the question NOR either answer are now duplicate.