As the Diazes cope with their new family dynamics, Ethan reluctantly asks his sisters for advice on girls.
- Jenna Ortega as Harley Diaz
- Isaak Presley as Ethan Diaz
- Ariana Greenblatt as Daphne Diaz
- Kayla Maisonet as Georgie Diaz
- Nicolas Bechtel as Lewie Diaz
- Malachi Barton as Beast Diaz
- Cerina Vincent as Suzy Diaz
- Joe Nieves as Tom Diaz
- Alana Baer as Chloe
- TBA as Aiden
- Rachel is mentioned.
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