Knife in the Water does not feature any identifiable LGBTQ+ characters or themes. The narrative centers on a heterosexual couple and a young male hitchhiker, exploring themes of masculinity, power dynamics, and marital tension. There is no depiction of queer identity or related storylines within the film's plot or character arcs.

Knife in the Water does not feature any identifiable transsexual characters or themes. The film's narrative centers on a psychological drama involving a heterosexual couple and a young male hitchhiker, exploring themes of masculinity, jealousy, and marital tension. No elements within the story or character arcs relate to transgender identity or experiences.

The movie does not contain any action or adventure elements.

Knife in the Water is an original screenplay, not an adaptation of existing material with pre-established characters. Therefore, no characters exist who were canonically or historically established as one gender and then portrayed as another.

This film is an original screenplay with characters created specifically for it. There is no prior source material, historical record, or previous adaptation establishing the characters' race differently from their portrayal in this 1962 production.

Not depicted in the film.