The film 'Onward' does not include any identifiable transsexual characters or explore related themes within its narrative. The story focuses on a quest undertaken by two elf brothers to spend one last day with their deceased father, without incorporating any transgender-specific elements.

The film features female characters Laurel Lightfoot and The Manticore who engage in combat against the Curse Dragon. However, the dragon is a magical construct and not a male opponent. No female character is depicted defeating one or more male opponents in direct physical combat.

Onward is an original story with characters created specifically for the film. There are no pre-existing characters from source material, prior installments, or history whose gender could have been swapped.

Onward is an original animated film with characters created specifically for this movie. There is no prior source material, historical basis, or previous installment for its characters to establish a canonical race that could then be altered.