Stephanie Lake is a scientist working for Derek Powers in DCAU.
Stephanie was hired by Derek Powers to help him with his radioactive radiation. She suggests that she could clone him a new body with a baseline DNA. Stephanie decided to test it on Mr. Freeze whose DNA was also destroyed by mutation. His new body works at first however when his body starts to fail she tries to kill him but Freeze escapes and puts on a new suit of freeze armor. He attacks her and Powers and she ends up getting frozen solid by Freeze.