Pete Ross (Sam Jones III) eventually leaves the show this season, citing the physical and emotional toll of keeping Clark’s secret—a grounded, realistic take on the "superhero sidekick" trope.
Lana Lang (Kristin Kreuk) has often been a source of frustration for fans, but Season 3 gives her genuine agency—and tragedy. She discovers that the nice couple who raised her, Nell and Henry Small, lied about her biological father’s identity. She learns he was the infamous criminal mastermind from Season 2—until she finds out that isn't true either. Her arc involves her inheriting the Talon theater and beginning a romance with Adam Knight (a mysterious character with a dark secret). However, the highlight is her relationship with her biological father, General Sam Lane (father of Lois Lane), who uses her to spy on Lex. For the first time, Lana steps out of the "damsel" role and becomes a player in the espionage game, though it costs her dearly. smallville season 3
: Hosted by Tom Welling (Clark) and Michael Rosenbaum (Lex), they review every episode with behind-the-scenes insights. Pete Ross (Sam Jones III) eventually leaves the
Often cited as a top series episode, Lex tries to regain memories through a dangerous experiment. She learns he was the infamous criminal mastermind
: This season begins the significant strain on Clark and Lex’s friendship, moving away from "Monster of the Week" filler to focus on Lex’s growing obsession with Clark’s secret. Must-Watch Episodes
: In the episode "Perry" , a washed-up Perry White arrives in Smallville. Lex discovers that Perry has powerful incriminating evidence—on paper—of Lionel Luthor’s past wrongdoings.
" (S3E10) : Clark temporarily loses his sight, leading to the development of his super-hearing.