Michael Rosenbaum returns to Smallville for its finale. As seen here, he reprises the role of Lex Luthor.
Lux Luthor will return for the final episode of Smallville. The character is played by Michael Rosenbaum.
A picture of Michael Rosenbaum as Lex Luthor on Smallville. He was a major character until season seven.

Smallville Quotes

Lois: You've got to be kidding me. Little Mermaid, I dated your prince for like a day.
Mera: It's understandable that you would seek a superior companion. I'm just surprised that powerful men would choose someone with lesser ability.
Lois: Listen squid lips, you don't know anything about me or Clark.

Chloe: The true test of believing is someone knowing their lies are there to protect you.
Chloe: It's not really trust if you have to ask people to explain themselves.