Nerys Myk wrote:
Indeed. There is more drama and conflict in exploring the role of a hybrid in society than that of a character of a single planetary origin. And Star Trek is a drama first and foremost.
I actually don't agree with this at all. In the history of Trek we have had only one Human-Vulcan hybrid and numerous pureblood Vulcans. I don't think that the stories focusing on the pure Vulcans had less drama and conflict. In fact, only a tiny part of Spock's established history revolved around his human heritage. It's the same with Troi - why not just make her an empathic Betazoid and focus on giving her race a culture and idiosyncracies (instead of plot-busting telepathy)? It's all in the writing and I just think that half-breeds are so cliche that they can represent lazy writing.
There are also numerous ways of doing hybrids that don't involve standard interbreeding. These include rescue from an alien civilisation (Worf, or Seven), genetic transformation (Delenn, Tuvix, Lyta Alexander), disguise (Seska), body swaps/possession (Sargon, Pah Wraiths, Tokra). Generally if an alien species is interesting I don't think you need the millstone of being a hybrid to give the character drama. Trois is the classic example. She was woefully underused and her half-human heritage added no drama at all because she was a poorly conceived character.