Can guests request toy story characters in disney parks?

The available information about Disney's Hollywood Studios focuses on the park’s history, themes, and general attraction offerings. It does not mention any official program that allows guests to request meet‑and‑greet interactions with specific Toy Story characters. While Disney parks routinely offer character meet and greets, the specific policy for Toy Story characters is not documented in the provided evidence. Therefore, based solely on the verified sources, we cannot confirm that such requests are possible or how they would be handled.