Mara was a student at Smallville High School and a recurring antagonist in the Third and Fourth seasons of the WB Television series Smallville.
She was portrayed by Moneca Delain who played Lisa in The Lost Boys: The Tribe.
In her junior year, she was the girlfriend and co-conspirator of Jason Dante. Pete Ross became involved with street racing, gaining the nickname, Pete "The Boss" Ross. Martha and Clark were driving home from the hospital when they were nearly hit by a couple of street racers. Clark super speeds after them and discovers that one of them was Pete who won the race. Mara was standing alongside Dante as he pronounced Pete the winner of his latest race and congratulated Pete with a kiss on the cheek. While Pete was getting ready for another race, Dante tells him to take a dive. Mara gave Pete a more passionate kiss "for luck" prior to his next race, which she was responsible for starting.
Mara was at Dante's garage when Clark and Pete arrived with Lex Luthor's Porsche as the prize for another race between Pete and Dante. He accepts the challenge and told her to to drive the car to the race site. Pete didn't trust the pair and insisted on driving the car himself with Mara as passenger. When the race began, Mara once again started it but Dante was fatally killed.
Although she was involved with illegal activities, Mara received no jail time and enjoyed her senior year being part of the Smallville High cheerleaders. She along with the Cheerleaders of Devotion used a kryptonite-laced love potion to cause the football players to be obsessively devoted to them. Clark managed to thwart Mara and the cheerleaders, freeing the players from their influence.
Months later, the Talon was hosting a party for the Smallville High students. Clark was sitting alone studying when Mara and Mary approach him inviting him to go with them to a party. Clark politely declines the offer, out of fear that his secret would ruin a potential relationship, so Mara and Mary went to talk to some other guys.