The film "The DUFF" does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses on heterosexual relationships and high school social dynamics, with no explicit or implicit representation of queer identities or experiences.

The film 'The DUFF' does not feature any identifiable transsexual characters or themes within its narrative. Its plot focuses on high school social dynamics, labels, and self-acceptance, without engaging with transgender identity in any capacity.

The movie does not contain any action or adventure elements.

The film is an adaptation of a novel, and all major characters, including Bianca Piper, Wesley Rush, and Madison Morgan, retain the same gender as established in the source material. No canonical characters were portrayed with a different gender.

The film adapts a novel where character races were not explicitly defined but generally implied as white. The casting of characters like Casey Cordero with an actress of Hispanic ethnicity is considered an ethnic shift rather than a change in broader racial category, aligning with the prompt's exclusions.