High School Musical: The Musical: The Series offers a consistently positive and affirming portrayal of LGBTQ+ characters and themes. It features prominent gay relationships, characters exploring their bisexuality, and same-sex parents, all depicted with dignity, complexity, and agency, integrating their identities naturally into the narrative.

The series portrays Christianity positively through the character of Ashlyn Caswell, whose faith is depicted as a source of kindness, moral guidance, and personal strength without being satirized or criticized.

Judaism is portrayed positively through the character of Big Red and his family, with Hanukkah celebrations and his Jewish identity shown as a normal and accepted part of his life.