The film does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses solely on a mystery investigation and the comedic interactions between its heterosexual main characters and their families.

The film "The Accidental Detective" does not feature any identifiable transsexual characters or themes. The narrative focuses on a mystery-comedy plot 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 short story, and its main characters, Kang Dae-man and Noh Tae-soo, retain their male gender from the source material. No other significant characters appear to have undergone a gender change from prior established canon.

This film is an original South Korean production featuring characters created for the movie. There is no evidence of characters being adapted from source material or historical records where their race was established as different from their on-screen portrayal.