<P> Set in Massachusetts, in the fictional town of Marshport, the series tells the story of the Diaz family, specifically focusing on Harley, the middle of the seven children . Harley makes her way using her creativity to deal with living in a large family . </P> <Ul> <Li> Harley Diaz (Jenna Ortega) is the middle of seven children and a young engineering prodigy . She is the central character in the series and views herself as an inventor . Some of her known inventions are the Conveyor Belt Table, the Slushinator, the Skate Kite, and a snow machine . In "Stuck in the Sweet Seat", it is revealed it is her 13th birthday . A significant feature is that she tends to break the fourth wall to tell the viewers something about the situation . </Li> <Li> Rachel Diaz (Ronni Hawk) is the oldest of the seven children and Harley's vain older sister . In "Stuck with No Rules", it is revealed that she is 16 . </Li> <Li> Ethan Diaz (Isaak Presley) is Harley's oldest brother and her partner - in - crime; she refers to him as her "best friend in the family". He is an aspiring musician . In "Stuck in the Sweet Seat", it is implied that he is the third oldest of the seven, behind Rachel and Georgie . </Li> <Li> Daphne Diaz (Ariana Greenblatt) is the youngest of the seven children and Harley's younger sister . She enjoys having tea time with her dolls . In "Stuck with No Rules", it is revealed that Daphne can easily retaliate against anyone who takes things from her without getting her approval first . </Li> <Li> Georgie Diaz (Kayla Maisonet) is one of Harley's older sisters and the second oldest of the seven as implied in "Stuck in the Sweet Seat". She is a basketball player at her school . </Li> <Li> Lewie Diaz (Nicolas Bechtel) is one of Harley's two younger brothers and Beast's twin . It is revealed in "Stuck in the Beast - Day Party" that Lewie is older than Beast by five minutes . </Li> <Li> Beast Diaz (Malachi Barton) is one of Harley's two younger brothers and Lewie's twin . </Li> <Li> Suzy Diaz (Cerina Vincent) is Harley's quirky mother who rarely has any alone time from her children and tends to spend it in the most unlikely places . </Li> <Li> Tom Diaz (Joe Nieves) is Harley's father who operates a marina store, called "Tom's Bait and Bite", which sells camping and fishing equipment . </Li> </Ul> <Li> Harley Diaz (Jenna Ortega) is the middle of seven children and a young engineering prodigy . She is the central character in the series and views herself as an inventor . Some of her known inventions are the Conveyor Belt Table, the Slushinator, the Skate Kite, and a snow machine . In "Stuck in the Sweet Seat", it is revealed it is her 13th birthday . A significant feature is that she tends to break the fourth wall to tell the viewers something about the situation . </Li> <Li> Rachel Diaz (Ronni Hawk) is the oldest of the seven children and Harley's vain older sister . In "Stuck with No Rules", it is revealed that she is 16 . </Li>

Who plays harley from stuck in the middle