Mr. DeLacey is the only person in the book who shows kindness to the creature. Since he is blind, DeLacey doesn't see the ugliness of the creature, and he's the father that Frankenstein should have been to his creature.

Victor Frankenstein is the selfish man who creates the monster. He's horrified by the creature's physical appearance and runs away from it, never giving the monster a chance to learn how to get along in the world.

The creature is Victor's creation who enters the world and then is left alone to fend for itself after Victor runs from it. He changes into a creature of revenge when Victor rejects his own creation and the rest of the world is afraid to be near it.

Robert Walton is interested in exploring the unknown like Victor, but he also shows compassion and pity to the creature. He reevaluates his own mission after hearing the story of the creature.

The only two of these characters who change (dynamic) are the creature and Walton. The rest of the characters are the same (static) and don't change during the book. I don't think Victor is a dynamic character because he remains selfish throughout the book. In the end, Victor doesn't care that Walton's crew might be put in danger by going after the creature, just as he didn't care about his creation.

The two main characters are Victor Frankenstein and his creation, The Monster.

They are dynamic characters because they undergo changes as the novel progresses. For example, the monster starts out life as a 'tabula rasa', or blank slate, and through social conditioning, ends up with a perspective on how life should be lived and what relationships are.

Who are the main characters of Frankenstein?

Victor Frankenstein, the creator of the creature who wants to determine the limits of human mortality.
The creature is a main character who asks Victor to create a mate for him, but his creator is appalled by his appearance and leaves the creature to fend for himself.
Henry Clerval is Victor's best friend who protects and comforts Victor, later killed by the creature.
Mr. De Lacey is a blind man who is the only character who isn't afraid of the creature.
Alphonse Frankenstein, Victor's father, serves to remind Victor of the outside world when Victor gets so caught up in his experiments.
William Frankenstein, Victor's brother, is also killed by the creature, and Victor allows someone else to take the blame.

Elizabeth Lavenza is adopted by the Frankensteins, but she and Victor fall in love and get married. She's killed on their wedding night.

Justine Moritz is also adopted by the Frankensteins. She's the one accused of William's murder, is sentenced to death, and then executed. Victor knows the creature killed his brother.

M. Waldman is Victor's professor who inspires him to conduct experiments, never thinking Victor would carry them so far.

Robert Walton is an Arctic explorer who finds Victor near death. Victor tells his story to Walton and wants him to risk his life and the lives of his crews to go after the creature and kill it.

You can get more detailed descriptions and the remainder of the characters by going to the link below.