should stop dating in the show's penultimate episode, which upsets Cindy. Sarah Hagan as Millie Kentner, Lindsay's geeky and highly religious former best friend and next door neighbor. During the first half of the series, Millie struggles to keep Lindsay on the right track. She often looks out for her, like attending Lindsay's keg party to make sure everyone is safe. She also assists Lindsay in babysitting when Lindsay was too high on marijuana to function. Millie feels sorry for Lindsay because of her loss of faith. One night, Kim and Lindsay depart the Weir house and believe they ran over a squirrel. The next day at school, they learn from Millie that her lifelong pet dog, Goliath, had been killed by a hit-and-run right in front of Millie's house. A panicked Kim and Lindsay believe they were responsible for Goliath's death. Kim befriends Millie out of pity and also relates to Millie's situation. After Millie changes her attitude and clothing, starts rebelling against her parents and even yells at her mother to go away and leave her alone, Kim and Lindsay begin to grow worried. It wasn't until Millie was about to drink her first beer when Kim admits she killed Goliath. Millie and Lindsay leave together and go back to Lindsay's house to listen to records, confirming they will remain friends. Millie is not seen in the series after that. Jerry Messing as Gordon Crisp, a friend of the geeks. Despite being overweight and having chronic body odor from trimethylaminuria, Gordon tends to be optimistic and take things in stride. Gordon was assigned to be Sam's lab partner in the beginning of the series. We learn that Gordon also likes sci-fi and shows intelligence. Sam admits to Gordon he didn't want to be his partner, but would rather be with Cindy Sanders. Gordon doesn't seem surprised and begins to give Sam very helpful advice to get with Cindy, and Sam decides Gordon is a good guy and begins inviting him to join the geeks on their activities. Gordon always has a positive thing to say even in the most negative or embarrassing situations, e.g. encouraging Bill that no one picks him first in softball because they're afraid of him, complimenting Sam's Parisian nightsuit, suggesting places for Sam and Cindy's first date, and convincing Daniel he would enjoy playing Dungeons & Dragons because "you can pretend to be someone