Simon Stagg is an inventor and the founder and CEO of Stagg Enterprises. His company is responsible for pioneering new, innovative methods in the fields of engineering, chemistry and genetics. Stagg, an unscrupulous man by nature, always resented the fact that his daughter, Sapphire, fell in love with the adventurer Rex Mason. Mason, a former employee of Stagg's, is more popularly known as Metamorpho – the Element Man.
Simon always concocted various schemes to keep Sapphire and Rex apart – some of which, even put Metamorpho's life at great risk. Simon Stagg was responsible for genetically engineering the sentient Neanderthal man known as Java. He kept Java under his employ as his personal bodyguard and chauffeur.
Stagg tried to redeem himself by creating a chemical procedure that would turn Metamorpho back to normal, but he was forced to take Rex out of the process during the early stages because Sapphire was being threatened by a hired killer and Stagg wanted Metamorpho to protect her.
When Metamorpho decided to leave Sapphire, Simon made sure to keep him away from her, interrupting all his attempts to get in touch with her. Eventually, Metamorpho returned home with Sapphire and Simon used the Orb of Ra to kill him, much to Sapphire's sorrow. However, Metamorpho was brought back to life thanks to his friends, the Outsiders.
Eventually, Rex and Sapphire decided to get married and Simon allowed them to continue with the wedding after Metamorpho saved his life from a murder attempt planned by one of his employees. During the wedding, Sapphire was kidnapped by Simon's old enemy, Max Tremaine. Simon and Metamorpho worked together with the Outsiders to rescue Sapphire and Tremaine was killed by his own hand. With these events, Metamorpho almost cancelled the wedding, but in a turn of events, Simon convinced him otherwise and the couple married with Simon's blessing.
- Although this character was originally introduced during DC's Earth-One era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and should be considered apocryphal.
- 91 Appearances of Simon Stagg (New Earth)
- 6 Images featuring Simon Stagg (New Earth)
- 3 Quotations by or about Simon Stagg (New Earth)
- Character Gallery: Simon Stagg (New Earth)