In an interview with EW’s “Entertainment Weirdly” radio show, “Beyond the Gates” director Jackson Stewart revealed that when he was a production assistant on the TV series “Supernatural”, there was talk of doing a crossover with “Smallville”.
“There was a lot of really cool ideas that some of the writers had,” Stewart said. “They had an episode where they really wanted to do a Superman curse that was about every actor who plays Superman ends up getting killed. So they find out that Tom Welling from Smallville is next and have to save him. I thought that was one of the funniest ideas that I’d heard.”
Obviously the crossover never happened… But it would have been interesting for them to explain how Dean Winchester (played by Jensen Ackles) looked so much like Clark’s assistant football coach Jason Teague.