Peyton List as Lydia Domek
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Dove Cameron as Mackenzie Hartley
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Lucas Tills as Brendan Hartley
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Bryana Salaz as Morgan Garcia
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Sabrina Carpenter as Carrie Fairlie
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Maeve Tomalty as Zoey Montague
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Kira Kosarin as Adrianna Stevenson
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Cameron Boyce as Carter Williams
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Emily Osment as Bridgette Fairlie
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Zachary Gordon as Noah Sterecra
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Matt Shively as Owen Collins
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Ricardo Hurtado as Alejandro Burromuerto
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Nathan Kress as Nicholas Sterecra
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Selena Gomez as Ashley Sterecra
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Dianne Doan as Emma Shaunessy
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Claire Engler as Katrina "Kitty" Shaunessy
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Kenzie & Brendan's Family:
Mark Pellegrino as Brian Hartley
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Meredith Monroe as Melanie Hartley
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Bailey (Kenzie's service dog)
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Audrey (Brendan's dog)