Recurring cast
Maestro Harrell as Malik LeFrique, he became good friends with Tessa while working with her on the school newspaper. He has had an on-and-off relationship with Lisa.
Parker Young as Ryan Shay, the dim-witted football jock and Lisa's often embarrassing older brother. He is the most popular person at school, and appears to be as superficial as most other Chatswin residents. He is Tessa’s main love interest.
Bunnie Rivera as Carmen, Dallas' housekeeper, who is later hired by Noah.
Sam Lerner as Evan, a nerdy classmate who had a crush on Dalia.
Todd Sherry as Tom, father of the twins Kaitlin and Kenzie.
Gillian Vigman as Jill Werner, Noah's emotionally cold wife, who divorces him in season 2.
Abbie Cobb as Kimantha, one of Dalia's friends. (seasons 1–2)
Kara Pacitto and Katelyn Pacitto as Kenzie and Kaitlin, Dalia's friends, who are also twin sisters.
Malin Åkerman as Alex, George's ex-wife, Tessa's mother in season 2.
Miriam Flynn as Helen, Alex's mother, Tessa's Grandmother (seasons 1–2)
Geoff Pierson as Emmett Altman. George's father, Tessa's grandfather. (season 3)
Arden Myrin as Jocelyn, an employee at the local country club who is attracted to George. (season 1)
Jay Mohr as Steven Royce, Dalia's father and Dallas' ex-husband. (seasons 1–2)
Alicia Silverstone as Eden, George's ex-girlfriend and the surrogate mother of Noah and Jill's child, Opus.
Thomas McDonell as Scott Strauss, a college-aged crush of Dalia's who becomes Tessa's love interest for a story arc. (seasons 1–2)
Evan Arnold as Chef Alan, Mr. Wolfe's boyfriend who works as the chef in the high school cafeteria.
Alex Boling as Alex, Tom's best friend (seasons 1–2)
Natasha Leggero as Nora, the owner of a pet shop and George's (potential) girlfriend. (season 3)
Lindsey Shaw as June, Ryan's girlfriend who Tessa feels is a lot like her. (season 3)
Ely Henry as Reggie, a nerdy student at Chatswin High. (seasons 2–3)
Bryson Barretto as Victor Ha Shay, a little boy whom the Shays adopt to replace Ryan after he leaves for college. He is especially polite and always eager to please others, especially his foster family. (season 3)