Based on available information, 'Yadang: The Snitch' does not appear to feature any identifiable LGBTQ+ characters or themes. Plot descriptions focus on a crime thriller narrative involving a snitch, prosecutor, and detective in the criminal underworld, with no references to LGBTQ+ elements among its characters or story arcs.

Based on available plot summaries, reviews, and cast details, Yadang: The Snitch (2025) does not appear to feature any transsexual characters or themes. The narrative focuses on a crime thriller involving drug investigations, informants, and corruption, with character arcs centered on figures like broker Lee Kang-soo and prosecutor Goo Gwan-hee, none of whom are identified as transsexual.

Available information for "Yadang: The Snitch" indicates no documented combat scenes where female characters engage in or are victorious in physical combat against male opponents. Therefore, no instances of female characters defeating male opponents in close-quarters physical combat are identified.

The film's principal characters—Lee Kang-soo, Goo Gwan-hee, and Oh Sang-jae—are consistently portrayed by actors of the same gender as their established roles in plot summaries and cast listings. No instances of gender swapping were identified.

The film's characters are portrayed by actors of Korean ethnicity, aligning with their descriptions as Korean individuals within the contemporary South Korean setting. There is no indication of prior source material establishing these characters as a different race.