- "We remember those who fell during the Last War. Beware Bertron's curse, for he is named Doomsday."
- ―Translated Kryptonian message[src]
During the events of the Last War, the scientist Bertron created a monstrous creature during an experiment with Kryptonian genetic engineering technology, whose creation would forever be deemed a curse to Kryptonian history.
Ever since Bertron's creation, the Council of Krypton strictly forbade the creation of such a hateful deformity again. When advised of this protocol by a Kryptonian service android of Scout Ship 0344, Lex Luthor ignored its warning while creating his own deformity, decades after Krypton's destruction and the end of the Council's ruling, in order to kill the godlike Kryptonian refugee Superman.
- Doomsday - Creation
- In DC Comics, Bertron was an alien scientist who was responsible for the creation of Doomsday on Krypton, a monster that is best known for killing Superman.
Behind the scenes
- Bertron was first referenced in the Man of Steel DVD extra content.