Philip DeVona as William Forbes.
Seen in 1x13.
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Lee Spencer as Gerald Forbes.
Seen in 3x16.
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Jack Coleman as Bill Forbes.
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Marquerite MacIntyre as Elizabeth Forbes.
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Candice King (née Accola) as Caroline Forbes
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Via Caroline:
Lily Rose & Tierney Mumford as Josie & Lizzie Saltzman (TVD)
Kaylee Bryant & Jenny Boyd as Josie & Lizzie Saltzman (Legacies.)