In our now-defunct Phoenix (originally Artemis) campaign, the Crew consisted mainly of Humans, plus a Vulcan Chief Medical Officer, a Centauran Chief Engineer and about thirty faceless Centauran engineering redshirts. Our campaign was set in 2156, five years after the start of Enterprise, just before the outbreak of the Romulan War. We had to create our own Centauran template, as the Starfleet Operations Manual had not been released. You can find our version in the archives here, or you can do a search for "Centauran" using my username to dig up additional details.
“In our every deliberation, we must consider the impact of our decisions on the next seven generations.”
-- Great Law of the Iroquois Confederacy