Then, Joan and Jay prepared a neural projector which was combined with Jay's helmet to help Barry foresee the incoming arrival of the Crisis. As the visions of future shocked Barry, Joan read a poem to awaken him.
Later that year, when the Crisis erupted, Joan was erased from existence along with her reality after an antimatter wave destroyed Earth-3 and the remaining realities. Later, after the Paragons rebooted the Multiverse, Joan was presumably brought back to life along with the other Earth-3 residents.
- Joan Williams was portrayed by Michelle Harrison.
- 1 Appearances of Joan Williams (Arrowverse: Earth-3)
- 1 Images featuring Joan Williams (Arrowverse: Earth-3)
- Quotations by or about Joan Williams (Arrowverse: Earth-3)
- Character Gallery: Joan Williams (Arrowverse: Earth-3)