THEN: Johnny Galecki as 'David Healy'
Darlene's on-again, off-again boyfriend David (who is the little brother of Becky's boyfriend Mark) is so well-liked by the Conners, he is invited to live with them in season five. Well-mannered, artistic and intelligent, David is nearly the opposite of Darlene. —XFINITY Entertainment Staff (Photo: ABC)
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