3. Ralph Macchio appeared in an episode of Eight is Enough.
5. Betty Buckley joined the cast in the second season.
Classic TV Family: Eight is Enough
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 Eight is Enough originally aired from 1977-1981 Photo: ABC/Getty Images
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Classic TV Family: Eight is Enough
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 Willie Ames went on to star in “Charles in Charge” and appear on Celebrity Fit Club. Photo: ABC/Getty Images
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Classic TV Family: Eight is Enough
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 Ralph Macchio appeared in an episode of Eight is Enough. Photo: ABC/Getty Images
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Classic TV Family: Eight is Enough
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 Adam Rich and Dick Van Patten Photo: ABC/Getty Images
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Classic TV Family: Eight is Enough
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 Betty Buckley joined the cast in the second season. Photo: ABC/Getty Images
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Classic TV Family: Eight is Enough
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 Betty Buckley and Dick Van Patten’s characters were ahead of their time playing parents to a family with eight children. Photo: ABC/Getty Images
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