Who are the new characters in toy story 4?

Based on the verified sources provided, there is no information about new characters that appear in Toy Story 4. The Wikipedia excerpt refers to Toy Story 5, noting the introduction of a tablet character named Lilypad and several new voice actors. Since Toy Story 4 is not described in the evidence, we cannot confidently identify any new characters for that film. For accurate details on Toy Story 4’s characters, additional reliable sources would be required.