Main •
Bella Thorne as Paige Townsen, a young and beautiful college student who gets cast in the movie adaptation of a blockbuster book series called
Locked, which causes her life to change overnight. She is in a love triangle with Jake (Charlie DePew), her longtime crush, and Rainer (Carter Jenkins), her co-star in
Locked. • Charlie DePew as Jake Salt, a down-to-earth guy from the Midwest with an edge who aspires to be a screenwriter and an indie filmmaker. He is Paige's best friend and one of her love interests. Charlie DePew replaced Jesse Henderson in the role from the original pilot. •
Georgie Flores as Cassandra "Cassie" Perkins, Paige's roommate and best friend. Later, she becomes the girlfriend of Adam. •
Carter Jenkins as Rainer Devon, the son of famous producer Nina Devon, and, as later revealed, Alan Mills. He is labeled the "sexiest man alive", and is a famous actor. He has a complicated friendship with Jordan Wilder and soon develops a romantic interest in Paige Townsen. • Niki Koss as Alexis Glenn, Rainer's old friend who competes for the same role as Paige. She is secretly bisexual. •
Keith Powers as Jordan Wilder, a troubled star who lands the role of the other point in the movie's famous love triangle. He and Rainer are best friends but have a complicated history which is further heightened by the fact that both share a past with Tangey. •
Pepi Sonuga as Tangey Turner, a pop star with a controlling mother. She was sleeping with Jordan Wilder while dating Rainer Devon, which creates tension between the two men. •
Perrey Reeves as Nina Devon, Rainer's smart and cunning mother. Confident and manipulative, she will do whatever it takes to make sure things go her way.
Recurring •
Jason Antoon as Wyatt, the original director of the movie adaptation of
Locked, who leaves the production on the film during its two-month hiatus (season 1) •
Katelyn Tarver as Rachael Davis, former Broadway actress and Alexis's love interest (season 1) •
Nathan Stewart-Jarrett as Barrett, an entertainment and gossip reporter whose beat is Hollywood (season 1) •
Tanjareen Martin as Brandy (season 1) •
Shawn Christian as Alan Mills, the head of the film studio producing the movie who is later revealed to be Rainer's biological father •
Vanessa Williams as Ida, Tangey's mother and manager •
Tom Maden as Adam, a production assistant on the movie and Cassie's boyfriend •
Danielle Campbell as Harper, a former child star whom Rainer meets in rehab and with whom he quickly becomes involved (season 2) •
Claudia Lee as Billy, an actress working as a waitress whom Jake hires to replace Paige as the lead on his independent film (season 2) •
Sofia Carson as Sloane, the best friend of Alexis (season 2) •
Rob Estes as Sloane's father and love interest of Nina Devon (season 2) == Production ==