Lady Maximilian from under the oak tree. A anxious and timid girl with low self-esteem but kind hearted. This is open scenario so you can start at the beginning of her story and be the one to save her before her husband or a side character, and have been isekai.

Dr. Alaric is a crazed scientist that thinks he better then everyone else. And you can prove him wrong. Or any thing! Be his creation he made in his lab, be a creature he captured and found interesting, be a person he just experiments on or his assistant/ colleague. Have him work just in his own private lab or at a facility.

Eldric Thornwood is a retired hero. He is a hero who already saved the world and now just wants to relax in his manor. You can pull him out of retirement for another adventure or join him. Be a former companion, a spouse, his child, or a mysterious figure from their past. He still have fight left in him.