Lydia, Carrie, & Bridgette's Family:
Candace Cameron Bure as Jillian Fairlie

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Scott Weinger as Michael Domek

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Jodie Sweetin as Rachelle Fairlie

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Fiyero (Lydia's cat)

Nessa (Family Cat)

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Alejandro's Family:
Gael Garcia Bernal as Antonio Burromuerto

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Alanna Ubach as Maria Burromuerto (Alejandro's mother)

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James Maslow as Carlos Burromuerto

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Lacey Chabert as Leanne Burromuerto

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Jake T. Austin as Jose Burromuerto

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Benjamin Bratt as Julio Burromuerto

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Noah & Nick's Family:
Jessica Biel as Lily Sterecra

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Josh Hamilton as Mitchell Sterecra (Noah's father)

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Edison (Noah's dog; Golden Retriever)

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Morgan's Family:
Gilles Marini as Lucas Garcia

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Brooke Shields as Renee Garcia

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Corey Monteith as Oliver Garcia

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Matt Bennett as Devan Garcia

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Mackenzie Ziegler as Kendra Garcia