Got a really odd one here. I was running through 'War is Good for Business' and was fighting inside the nausician base. I accidentally triggered the triolic field in the button bar and was surprised to find I wasn't the only human on base. A Commander Science Officer (human) was also present, standing at attention. He didn't get involved in the firefight and just stood there. He didn't show up until after I activated the field and stayed in the blue phased state you can see.
I'm not certain if this is a bug or a really odd easter egg..