<Tr> <Th> Relatives </Th> <Td> Chloe Sullivan </Td> </Tr> <Tr> <Th> Affiliations </Th> <Td> Daily Planet </Td> </Tr> <P> Lois Lane is a fictional character on the television series Smallville; she was portrayed continually by Erica Durance since her first appearance in the season four premier "Crusade" to the series finale . Durance began as a guest star in season four but was promoted to series regular status beginning in season five . The character of Lois Lane, first created for comic books by Jerry Siegel and Joe Shuster in 1938 to be the love interest for Clark Kent and his alter - ego Superman, was adapted to television in 2001 by Alfred Gough and Miles Millar--this is the fourth time the character has been adapted into a live - action television series . </P> <P> In Smallville, Lois comes to town to investigate the apparent death of her cousin Chloe Sullivan at the start of the fourth season . After finding Chloe still alive, Lois is forced to enroll in Smallville High to complete the remaining credits of high school she failed to achieve . As the series progresses, her interest in journalism grows, first writing a couple of articles for the Smallville High Torch in season four, landing a job at the Inquisitor in season six, and finally being hired at the Daily Planet in season seven . Throughout seasons four, five, six and seven, Lois's relationship with Clark Kent is depicted more as a brother / sister relationship, with the two characters often butting heads . By season eight, Lois begins to realize that she is falling in love with Clark, and by season nine the two become an official couple . During season ten the relationship goes through several milestones and midseason the pair get engaged . </P>

When does lois lane become a regular on smallville