While celebs who play students are seldom in class, they still have to have acting educators.

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Oddly enough, these profs and teachers usually end up teaching way more life lessons than they do math and science. In honor of Pi Day, (yes, 3.14) we created a roundup of our favorite teachers. 

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We can't go through a day without reminiscing Mr. Feeny's lessons at least once. He's one of our more fascinating picks. Have you ever had the same teacher from kindergarten through college? Didn't think so. Check out our list!

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Who is your favorite TV teacher? Did their episodes teach you anything worth remembering? Tweet us @OKMagazine and leave a comment below.