>>713091692
Another one I want to mention is how Sissel's design originates from an obscure ass PS2 game called Under The Skin where you play as an alien playing pranks on people. You can disguise yourself as any NPC, and one of those NPCs became the basis for Sissel. The game seems to share some conceptual similarities with Ghost Trick, yet no single developer that worked on Under the Skin also worked on Ghost Trick. So no one really knows who designed Sissel.
https://youtu.be/eF2Hi-QpE4g?feature=shared&t=1500