Flashpoint Batman

Flashpoint Batman is from the Flashpoint Dimension created by Flash. In his timeline, Bruce Wayne was killed instead of him, and his wife Martha went insane and became the Joker of her timeline.

Involvement in Story
Thomas first appeared in Earth 4 after an anomaly put him there. Initially believing Bruce Wayne was an impostor, he attacked him until realizing where he was. He made a machine to transport himself back to the Flashpoint timeline, where a large battle between the heroes, Atlantians, and Amazonians was taking place. He sacrificed himself to stop Aquaman's bomb, drowning in the process.

In the Chaos event, he later returned after being brought back to life previously by Dormammu, and helped the other Batmen, Omnitraxus, and Strange get to their own universes.