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Alton Brown, 'Good Eats'
"Good Eats," Food Network
You know him as: Himself, aka AB
Why we like him: He demystifies the whys and wherefores of cooking in a way that's cheesy, yet cool and clear at the same time -- kind of like that one high school teacher that was actually able to make you remember something you learned, even far into adulthood. Plus, he brings power tools into the kitchen.
Where else you've seen him: "Iron Chef America," "Feasting on Asphalt"