Tremors: Shrieker Island does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses solely on its creature-feature premise, with no exploration of queer identity or experiences within its plot or character arcs.

Tremors: Shrieker Island does not feature any identifiable transsexual characters or themes. The film's plot is solely centered on action and survival against monstrous creatures, without incorporating elements related to transgender identity or experiences.

The film features female characters who participate in action against the creature antagonists, primarily using firearms and strategic planning. There are no scenes depicting a female character achieving victory in close-quarters physical combat against one or more male human opponents.

No established legacy characters from the Tremors franchise, or any historical figures, were portrayed by a different gender in "Tremors: Shrieker Island." The primary returning character, Burt Gummer, maintains his original gender.

This film is a sequel in an existing franchise. The primary recurring character, Burt Gummer, is consistently portrayed by the same white actor. All other significant characters introduced in this installment are new and original to the film, thus not subject to the race swap definition.