Here's what Rosenbaum told Ausiello:
“I’m delighted to return for the series finale,” Rosenbaum tells TVLine exclusively. “I’m simply doing it for all of the fans out there who made Smallville the great success it is. I appreciate all of their passion, their relentlessness, and even their threats. Ha ha.”
“I can’t wait to hug the old crew back in Vancouver one last time and see all of my old friends once again. Oh, and for Lex to become the bad-ass he’s destined to be.”
Executive producers Kelly Souders and Brian Peterson say of Rosenbaum’s encore, “It feels like the stars are aligning, literally. We couldn’t be more excited. And as far as the way he returns… there’ll be no doubt about how Lex becomes the great rival in Clark Kent’s life. He is the villain of the story.”
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