Now: Jason Biggs
Following a string of mediocre on-screen movies, Biggs married his “My Best Friend's Girl” co-star, actress Jenny Mollen, in 2008. He reprised his most famous role in the 2012 sequel “American Reunion," and can be heard as the voice of Leonardo in Nickelodeon's animated "Teenage Mutant Ninja Turtles" series. —XFINITY Entertainment Staff (Photo: Frazer Harrison/Getty)
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