Bitsie Teschmacher is the cousin of Eve Teschmacher and the mother of two girls.
After Eve was revealed to be Lex Luthor's accomplice, she risked her freedom to visit Bitsie and administer the Harun-El cure, saving her. Bitsie let her daughters go camping, and would plant-sit while her Aunt Mary went on vacation to Florida.
Bitsie was visited by Supergirl, Lena Luthor, and Alex Danvers, who were looking for Eve at her aunt's house. Bitsie invited them in, but lied about having seen Eve recently, and got nervous when Lena mentioned that Eve had talked about a sick cousin with two daughters. When she went to take a cake out of the oven, Bitsie neglected to use oven mitts, a fact that the three girls picked up on.
Bitsie attempted to cover her tracks by feigning pain, but Lena put two and two together and realized Eve had given Bitsie the cure. Bitsie got violent, demanding that they leave, but inadvertently punched a dent in her granite countertop, Bitsie grabbed a knife and proclaimed that they could not take the Harun-El out of her, as she did not want to go back to being sick. Supergirl calmly appealed to Bitsie's better nature by admitting what Eve did was a good thing, but warned that the longer Eve was with Lex, the worse off she would be. Bitsie then directed the trio to National City University, where Eve had a secret lab.
Powers and abilities
- Harun-El mutation: Bitsie was given Lena Luthor's Harun-El drug by Eve Teschmacher to cure her of cancer. In doing so, Bitsie's physiology was augmented, allowing her to access her powers.
- Cancer immunity/resistance: The Harun-El mutation healed Bitsie of metastasized cancer.
- Heat immunity: Bitsie is immune to high temperatures; she took a cake out of her oven without oven mitts and, as noted by Alex Danvers, did not sustain burns or feel pain.
- Superhuman strength: Bitsie is strong enough to create a dent on a granite counter with a single punch.