Dr. Alleria Trost is an intelligent scientist in charge of a secret military base floating in the ocean...

...who had been kidnapped at a young age and converted into a faerie. A shapeshifter, she can absorb the DNA of others to mimic them, or, if she consumes them entirely, become them. (You know 'the thing?' like that.) Shapeshifting is tiring, and thus, she is a coffee addict.

Although her inhuman nature is apparent, she denies it heavily, claiming humanity... which wouldn't be a problem if she wasn't the heir to the throne of a tribe of fae determined to convert all of humanity into their own twisted idea of nature. A throne that is empty at this moment, due to regicide.

If she is particularly upset, aspects of her form will... destabilize.