Ah yes - I might be getting ahead of myself. Marcus as first officer of the Enterprise is mentioned in the prequel comic. Some are speculating that Peter Weller will turn out to be Carol's Dad. Either way, Weller has been cast, and he's a white dude. The race issue can be frustrating too but equally we have an alien desert with only a handful of aliens being present at graduation. It may be that there are alien academies as well so Earth tends to have humans. It would be nice to see some more new characters from some of the classic TOS races though.