Sirius Black could be a character to rescue abysed Harry in fanfics. Sirius loves Harry like a son and is a very capable wizard. He has a lot of experience with dark magic and the wizarding world's underbelly. He would stop at nothing to save Harry, using his Animagus form or his combat skills if necessary.
One popular 'Abysed Harry is Rescued' fanfic might be 'The Rescue of Abysed Harry by Hermione'. In this fic, Hermione uses her intelligence and magic skills to find Harry in his abysed state and bring him back. She might have to face various challenges like dark magic barriers and dangerous creatures.
The Cullens are the most likely. Edward, with his mind - reading ability, can try to sense where Renesmee is. Bella, with her strong will and vampire strength, would be at the forefront of the rescue mission. And Carlisle, with his wisdom and leadership, would plan the whole operation.
Well, obviously Peter Parker (Spider - Man) is one of the main characters since the story is about rescuing him. Then, of course, the Avengers. This would include Iron Man (Tony Stark), who would likely use his high - tech gadgets and suits to help in the rescue. Captain America (Steve Rogers) would bring his leadership and combat skills. Thor with his godly powers would also be a key figure, and Hulk (Bruce Banner) could provide brute force when needed.
Naruto would be a very likely character to be involved in the rescue. He and Gaara have a special bond, and Naruto is always ready to save his friends. Rock Lee might also be involved as he is very loyal to his comrades. And Temari, Gaara's sister, would surely not sit idly by when her brother is kidnapped. She would be one of the first to set out to rescue him.
Iruka Sensei could also be a candidate. He was one of Naruto's first supporters and has a deep connection with him. He would probably risk a lot to save Naruto.
Obviously, Naruto would be a main character. His determination and powerful jutsu would be crucial in the rescue mission. Gaara, the Kazekage himself, would also be a central figure even though he is the one being rescued as his past and his role in the shinobi world are important aspects.
Batman is the most likely. He has a strong bond with Nightwing and would do anything to save him. His skills in combat and detective work would be crucial in finding and freeing Nightwing.
Most likely, Pidge's teammates would be the ones to rescue them. Characters like Shiro, Keith, Lance, and Hunk would be prime candidates. They have a strong bond with Pidge and would stop at nothing to get them back. Shiro, with his leadership skills, would probably plan the rescue mission. Keith could be the one leading the charge in the actual rescue with his combat skills. Lance and Hunk would also contribute, maybe Lance with his sharpshooting and Hunk with his engineering knowledge to get through any barriers.
The main characters would probably be the ones that were central to the first 'cartoon all stars to the rescue'. These could include not only well - known cartoon characters but also some of the more unique or lesser - known ones that added a special touch to the original story. Maybe characters like the Powerpuff Girls or Dexter from Dexter's Laboratory could be part of the main cast too. They would be the ones driving the action and the plot forward, whether it's through their unique abilities or their personalities.
Harry Potter is an obvious choice. Given their strong friendship and the many adventures they've had together, Harry would surely do everything in his power to rescue Hermione. He has faced many challenges before and wouldn't stand by while his friend is in Azkaban. Another likely character is Ron Weasley. He and Hermione have a complex relationship, but he would definitely not let her rot in Azkaban. Ron has his own skills and resources within the wizarding world that he could use to plan a rescue. Dumbledore, if he were still alive in the fanfiction, would also be a likely rescuer. He was always one to see the good in people and Hermione's intelligence and value to the wizarding world would make him want to save her. He has the power and influence to challenge the decision to send her to Azkaban.