<P> Lindsay's friends constitute the title's "freaks"--Daniel Desario, Ken Miller, Nick Andopolis, and Kim Kelly; Sam's friends constitute the "geeks"--Neal Schweiber and Bill Haverchuck . The Weir parents, Harold and Jean, are featured in every episode . Millie Kentner, Lindsay's nerdy and highly religious former best friend, is a recurring character, as is Cindy Sanders, the popular cheerleader on whom Sam has a crush . </P> <P> Lindsay finds herself attempting to transform her life as an academically proficient student, star "mathlete," and young girl into a rebellious teenager who hangs out with troubled slackers . Her relationships with her new friends, and the friction they cause with her parents and with her own self - image, form one central strand of the show . The other follows Sam and his group of geeky friends as they navigate a different part of the social universe and try to fit in . </P> <Ul> <Li> Linda Cardellini as Lindsay Weir </Li> <Li> John Francis Daley as Sam Weir </Li> <Li> James Franco as Daniel Desario </Li> <Li> Samm Levine as Neal Schweiber </Li> <Li> Seth Rogen as Ken Miller </Li> <Li> Jason Segel as Nick Andopolis </Li> <Li> Martin Starr as Bill Haverchuck </Li> <Li> Becky Ann Baker as Jean Weir </Li> <Li> Joe Flaherty as Harold Weir </Li> <Li> Busy Philipps as Kim Kelly </Li> </Ul> <Li> Linda Cardellini as Lindsay Weir </Li>

Who plays the little brother in freaks and geeks