- Simon referred to Betty as his princess while he still possessed some of his sanity. This may explain his obsession with princesses.
- Adam Muto stated that the figure in the picture with Simon and Betty is "some sort of cryptid."
- Betty is a woman who appears to be in her twenties or thirties.
- In a picture on Simon Petrikov's wall, Betty is seen wearing glasses and a green turtle neck.
- In another picture, Betty is wearing a lab coat. This might suggest that she was in a field of study, such as science or medical.
- She has pink skin and brown-red hair.