Two years after his "Seinfeld" appearance, Jon Favreau caught his big break alongside Vince Vaughn in 1996's "Swingers." In addition to acting, Favreau, now 49, has directed several successful movies including "Elf" and "Iron Man." Last year, Favreau starred in the critically acclaimed movie "Chef." —XFINITY Entertainment Staff (Photo: Alexander Tamargo/Getty Images)
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