Question: is lex luthor a good guy in smallville

Answer: No, The Smallville incarnation of the character is first introduced as a morally ambiguous character, who walks a fine line between good and evil. Lex is an inquisitive person, and it is that curiosity that drives him to attain as much power as possible as the series progresses--it will ultimately lead him to being Clark's greatest enemy. Michael Rosenbaum has been nominated for and won a Saturn Award and a Teen Choice Award for his portrayal of Lex Luthor on Smallville. After seven seasons as a series regular, Michael Rosenbaum left the show, but reprised the role for the two-hour series finale.