Harry would be extremely angry and immediately rush to her rescue. He has a strong sense of loyalty towards Hermione and would not tolerate her being in such a dangerous situation. Ron, on the other hand, would also be very worried. He might start panicking a bit at first but then quickly gather his courage and follow Harry's lead in trying to free Hermione.
The main characters are most likely Harry and Hedwig. Since the title mentions Hedwig's hurt and Harry snaps, they are bound to be central to the story.
Captain America would probably be very reflective. He might see his past self as a reminder of his long journey and how much he has changed. He could try to offer some words of wisdom to his younger self.
In this fanfic, Hermione would jump into action. She'd make lists of possible causes and solutions. She might consult with other intelligent characters like Luna Lovegood or Professor Flitwick. Ron would be the emotional support for Harry. He'd try to make Harry comfortable in his owl form, bringing him food and making sure he has a safe place to stay. And then there are the other students. Some might be scared of Harry in his new form, while others might be fascinated and want to study him. The teachers would have different reactions too. McGonagall, being an animagus herself, might have some insights but also be strict about the situation, while Trelawney might predict all sorts of wild things about Harry's future as an owl.
Hermione would probably be both fascinated and a bit exasperated. Fascinated because Tigger is such an unusual creature, but exasperated because his bouncy antics might disrupt her study time. Ron would likely be amused at first, thinking Tigger is a great source of entertainment. He might try to get Tigger to do tricks for him. Harry, on the other hand, would be more cautious. He would see Tigger as a potential ally or a new responsibility. He would want to make sure Tigger doesn't get into too much trouble or put himself in danger in the wizarding world.
Dumbledore would be very cautious. He would likely sense the great evil in Palpatine immediately. He would start to research and try to find a way to neutralize the threat. Hermione would be intrigued and start reading every book she could find about this strange new figure. Harry, on the other hand, would be more instinctive. He would feel the danger and be ready to fight if necessary.
Ron might be a bit more conflicted. On one hand, he would understand the need to get rid of really bad people. But on the other hand, he would be put off by the cold - blooded nature of Light's actions. He would probably say something like 'There's got to be a better way than just killing them off without a second thought.'
For the Order of the Phoenix members, they would be in a state of shock. Lupin, for example, would be very concerned about Harry. He would try to talk to Harry, offer his support, but also be on guard. Ginny would be heartbroken. She loves Harry, but the thought of him being Voldemort's heir is terrifying. She would try to hold onto their relationship while also being afraid of what Harry might become. And the Death Eaters? They would be excited at first, thinking they have a new leader, but as they get to know Harry better, they might realize he's not as easy to manipulate as they thought.
Definitely Harry. His past lives can bring so many new storylines. But don't forget about Ron Weasley. In some fanfictions, his past lives are related to great warriors or hunters in the wizarding world. Also, Dumbledore. His wisdom and power might have roots in his past lives, and exploring this in fanfiction can be really engaging. There are also some minor characters like Luna Lovegood whose past lives can add interesting twists to the story.
Rapunzel would probably be very curious. She might see the ghost as another adventure or a chance to learn more about herself. Since she has such an open - minded and positive attitude, she would likely follow the ghost willingly and be eager to see what the past has in store for her to discover.