Here is a niggle I've had since I began following Star Trek. In Season 4 of The Next Generation a race called the Trill were created, initially as the 'Alien of the week' but later on in Deep Space Nine they returned as series regulars. TNG Trill looked like a slapdash, nondescript beige forehead-appliance type humanoid which could not use the transporter for fear of damaging their Symbiont, and the Symbiont themselves, appearing as colourful neon fat slugs, could exist in human hosts for a week or so before being rejected.
|Odan from TNG episode 'The Host'|
|Our first look at a Symbiont (TNG 'The Host')|
When the producers of Deep Space Nine decided that the concept of the Trill demanded more exploration, they included one as their Science Officer. After casting an attractive young female actress, they decided they didn't want to cover her face with prosthetics and so designed a less restrictive make-up for the Trill. So, that's the TV show explanation, but what about a Star Trek cannon explanation?
Now that Trek is no longer on TV, it's unlikely that this particular mystery will be officially solved, so I guess we could take some artistic licence ourselves and theorize between us. Away we go.....
|Trill Jadzia Dax from Deep Space Nine.|