Mary Ann Constantine was the mother of John Constantine. When an alternate reality John Constantine came to their world as Darkseid prepared to destroy it, the magician attempted to save his other family by bringing them back to his world. However, along the way, Mary Ann was caught by one of Doctor Fate's magical hooks as he attempted to tether the escapees from leaving without him, dragging her down to her death.
- 4 Appearances of Mary Ann Quinn (Earth 2)
- 1 Images featuring Mary Ann Quinn (Earth 2)
- Quotations by or about Mary Ann Quinn (Earth 2)
- Character Gallery: Mary Ann Quinn (Earth 2)