Thanks, guys! I really had a blast with this one!
Icecypher, it is the same character with multiple forms. Here's her first appearance in the second game:
Everything's made out of yarn and I made sure to keep things floppy, so nothing happens to either side when I flip it. I stuffed the bodies, but on the human side, I didn't use any stuffing in her arms and legs to make sure everything would fit inside easily. Also, if you compare it to some of my other plushies, you can see I used a different method for the hair - if I'd done individual strands, I was worried about them getting caught.
Lyle's still a possibility for the future. Or maybe Thea should turn into a dragon....