Originally posted by Dandello:
Lois is given to have been born in 1967, Clark's birthdate is Feb 28, 1966. We aren't given a birthdate for Luthor, but the actor was born in 1949.
In 1993, the start of season I, Clark was 27, Lois was 26, Luthor was probably 44.
For what it's worth Lane Smith who played Perry White was 57, but they have him turn 50 during season 1. The actor playing Jimmy is also a little older than his intended age, so probably Luthor is meant to be around 40 or a bit younger.
Although maybe I should just assume they were not stricly age casting beyond Dean Cain (who was born 5 months after their birth date for Superman). Terri Hatcher was actually a year and a half older than Dean Cain, so the general trend seems to have been to cast actors younger then they actually were.
