Judd Apatow's series Freaks and Geeks may have had a short life, but it certainly packs a lot of star power into just 18 episodes. Aside from the stellar central cast that includes James Franco, Seth Rogen, Jason Segel, and Busy Philipps, the walls of McKinley High School were home to a ton of soon-to-be familiar faces. I recently rewatched the series in all its glory and couldn't believe how many up-and-comers I found. Check 'em out, and watch their Freaks and Geeks scenes.
Freaks and Geeks Flashback: 10 Stars Who Appeared on the Show
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