Aliies
Art-type-person-thingy...
Depends on what race you'd be, the OWMC can be Tok'Ra, Jaffa and Tau'Ri...
Now, the playable races:
Tau'Ri...
The Tau'Ri is a Goa'uld word for 'Humans of Earth', originally ruled by the ancient Goa'uld System Lord, Ra, the Tau'Ri have rapidly evloved to become one of the Goa'uld's primary threats. They are extremely adaptive, have the ability to operate many alien technologies and are trained expertly to deal with many times their own numbers, such as proven before where a four-man team of Tau'Ri have taken out an entire Battalion of Jaffa after hijacking a Ha'Tak and defeating an opposing one. Threat status is high for these seemingly simple creatures, their enginuity and rapid adaptation makes them one of the dominant species in the known universe...
Tok'Ra...
A dwindling race of former Goa'uld, the Tok'Ra, translated as 'Against Ra' are one of the Tau'Ri's primary allies, they are mostly spies and sabouteurs but after the fall of the Goa'uld nations they act as a liason between the Free-Jaffa and those still seeing the Goa'uld as their gods.
They bear all the strengths of the Goa'uld though the host is not 'suppressed' in this relationship, both the Symbiote and the Human they inhabit exist as one, literally granting them split personalities as both Tok'Ra and Human. (If you want to play as a Tok'Ra, you need to create two characters for the same person, one human as the host and one Tok'Ra Symbiote)
Free-Jaffa...
The Jaffa were once human, enslaved by the Goa'uld who have placed themselves as gods in their eyes... Shortly after the Tau'Ri appeared and challenged the might of the Goa'uld, the Jaffa began to see the truth on a large scale, gradually over eight years they obstained and finally aided in the final defeat of the 'false-gods', freeing their people forever from slavery and oppression on such a scale. They now live as an independant nation, forever cleaning up the tragedy of their thousands of years of enslavement and chasing down the final ghosts of their dark past...