Happy New Year, Charlie Brown is a traditional Peanuts special focusing on childhood experiences and anxieties. It does not include any identifiable LGBTQ+ characters or themes in its storyline, resulting in no specific portrayal to evaluate.

The film "Happy New Year, Charlie Brown" does not feature any identifiable transsexual characters or themes. Consequently, there is no portrayal to evaluate regarding transsexual identity or experiences within the narrative.

The movie does not contain any action or adventure elements.

This animated special features established characters from the Peanuts comic strip, all of whom retain their canonical genders as depicted in the original source material and prior adaptations. No character's gender was altered.

The animated special features the established Peanuts characters, whose racial depictions are consistent with their long-standing portrayals in the comic strip and previous animations. No character originally depicted as one race is portrayed as a different race.