Back in 1993, Kevin Sorbo had gotten the part of Superman in Lois & Clark: The New Adventures of Superman where he would play opposite of Teri Hatcher. Then 24 hours later, the part was taken away and given to Dean Cain. He wasn't out of work long, booking Hercules three months later.
Flash forward to today where Kevin Sorbo and Teri Hatcher have both been tapped to be part of a three-episode arc on Supergirl. Sorbo told ET.com that Hatcher will be playing his wife and that they are from an arch-rival planet of Krypton that is now destroyed.
That sure sounds a lot like Daxim to me. Speculating a little here… but if Sorbo and Hatcher were the King and Queen of Daxim and they were looking for the missing Prince who could possibly be Mon-El, it could explain why aliens are hunting him. But what could Mon-El have done to upset his parents?