Star Trek III: The Search for Spock does not include any overt LGBTQ+ characters or themes. The film's narrative focuses on the crew's mission to retrieve Spock, with no discernible representation of queer identities or experiences.

Star Trek III: The Search for Spock does not feature any identifiable transsexual characters or themes within its plot. The story centers on the crew of the Enterprise attempting to retrieve Spock's katra and body, with no elements related to transsexual identity present. Therefore, the film receives an N/A rating for its portrayal of transsexual themes.

The film features Lt. Saavik as a prominent female character involved in the plot's action sequences. However, she is captured by Klingon forces on the Genesis Planet and does not engage in or win any close-quarters physical combat against male opponents.

All established legacy characters in "Star Trek III: The Search for Spock" retain their canonical genders from previous installments and the original series. No character previously established as one gender is portrayed as another.

All major and legacy characters in Star Trek III: The Search for Spock are portrayed by actors of the same race as their established depictions in prior Star Trek series and films. No instances of a character canonically established as one race being portrayed as a different race were found.