Dana Plato as Kimberly Drummond (12 episodes, 1978-1986)

unknown source:

Kimberly had braces the first episode, and retainers for a while after that.

Original Comment from Mark Master Site 

Kimberly (Dana Plato) had clear braces (metal arch wire) in the early years of the show. They were never really shown very well on the show.

pic without braces
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