Cast of The DUFF

Mae Whitman plays Bianca Piper, a high school student who discovers she is labeled as the 'Designated Ugly Fat Friend' and seeks to change her social status.

Robbie Amell portrays Wesley Rush, a popular student who helps Bianca navigate her challenges and improve her social standing.

Bella Thorne plays Madison Morgan, a mean girl and Bianca's rival who embodies the typical popular high school stereotype.

Skyler Samuels takes on the role of Jess Harris, one of Bianca's close friends who supports her throughout her journey.

Bianca A. Santos plays Casey Cordero, another one of Bianca's friends who is involved in the group's social dynamics.

Romany Malco portrays Principal Buchanon, the high school principal who interacts with the main characters.

Ken Jeong plays Mr. Arthur, a teacher at the high school who provides comedic moments in the film.

Chris Wylde plays Mr. Fillmore, another teacher at the school who adds to the film's humorous elements.

Allison Janney portrays Dottie Piper, Bianca's supportive mother who plays a significant role in her daughter's life.

Seth Meriwether plays A.J., a character who interacts with the main cast and adds to the story.

Rebecca Weil portrays Caitlyn, a minor character who is part of the school community.

Brian Dewar McNamara plays Matt, another character that contributes to the film's high school environment.