What are the main characters in toy story 4?

The provided evidence includes information about Toy Story 5, but it does not mention the characters that appear in Toy Story 4. There is no reference to the specific characters that lead the story in the 2019 film, nor any supporting details. Without confirmed sources or citations that list or describe those characters, it is not possible to provide an accurate answer. If you need reliable character information, you may want to consult official sources such as the film’s credits or reputable databases.