Now that's a thought. We've had other previous Superman guest stars before. John Shea should've had a cameo. I wouldn't have minded if he even played the older, dying Lex clone. Not that he looks anything like Rosenbaum, but neither did the other guy.
the second I read this I had an awesome idea for how to include John Shea.
during the Finale, lets say that Michael Rosenbaum's return is the return of the real Lex, not a clone, Clark asks him how he survived and so we get some flashbacks as to how Lex lived after the Fortress was destroyed.
We see Lex in the snow and a old man comes to helps him, a few months go by and this old man is taking care of Lex, turns out this man knows full well who Lex is and has been keeping tabs on him.
A year goes by (taking place at the middle of Season 8) and Lex is now able to do things for himself, he sets up the Truck with a dying clone of his so when Oliver plants the bombs and "kills Lex", its shown to only be a clone who died and not Lex.
The old man is revealed to be John Shea, he still tries to help Lex out time and time again (this would be taking place during Season 9) but fails.
Lex gets frustrated with him, Shea tells him "let us work together, I know how to take down this alien, I have experience with this sort of thing".
Lex pulls a gun and points it at Shea and says "Sorry, you've lived out your usefulness......besides, I'm the villain of "THIS" story" *pulls the trigger*
