The Last Witness (1980) does not feature any identifiable LGBTQ+ characters or themes within its narrative. The film's plot, focusing on a detective's investigation into a murder and its historical implications, contains no elements related to queer identity or experiences. Therefore, its portrayal of LGBTQ+ themes is not applicable.

The film "The Last Witness" does not feature any identifiable transsexual characters or themes. Its narrative focuses on a crime mystery and political intrigue related to the Korean War, without engaging with transgender identity or experiences.

The movie does not contain any action or adventure elements.

The 1980 film "The Last Witness" is an adaptation of Kim Seong-jong's novel. A review of the main characters in both the novel and the film reveals no instances where a character's established gender was changed in the screen adaptation.

This South Korean film, an adaptation of a novel by Kim Seong-jong, features characters who are inherently Korean within its narrative and setting. There is no evidence or historical record suggesting any character was canonically established as a different race in the source material and then portrayed as another race in the film.