A recent article on KryptonSite reveals that Smallville star Tom Welling has attempted a number of methods to get Michael Rosenbaum to return to his role as Lex Luthor.

"I have tried a few things with Michael," he said. "I've twisted his arm, I've taken him to dinner, I've gotten him drunk. I'm trying everything that I can."

Welling confirmed at the San Diego Comic-Con that Rosenbaum is interested in making an appearance in the final season of the program, but that no deal has been made yet.

"Michael wants to come back, but there are just some things to iron out, and I think he understands that we can't end the show without Lex Luthor," said the star.

He added: "We're even teasing the idea that he's going to be on already, with the idea of clones, or [the idea] that Lex has developed these bodies that he could then tap into to heal himself later in life."

The tenth and final season of Smallville premieres at 8pm (EST) on September 24 on The CW.