Ernie, was the son of Plastic Man. Sometime after he died along with the other heroes, Ernie took over his role as a hero and started dating Metamorpho's daughter Megamorpho. Sometime after Megamorpho's death he was last seen being interviewed by Kyle. Ernie was in denile of her death claiming she would come back and revealed the connection of a "cursed" comic book.
- Appearances of Ernest O'Brien (Earth 16)
- Images featuring Ernest O'Brien (Earth 16)
- Quotations by or about Ernest O'Brien (Earth 16)
- Character Gallery: Ernest O'Brien (Earth 16)