| A | B |
|---|
| The young scientist who created the monster. His rejection of the monster contributes to the monster's hatred for humankind. | Victor Frankenstein |
| The "more than sister" of Victor Frankenstein. She is an adopted child, and she later marries Victor. The monster murders her after her marriage | Elizabeth Frankenstein |
| The son of a merchant and a dear friend of Victor's. He is often Victor's protector and he becomes one of the victims of the monster. | Henry Clerval |
| An enormous creature and misfit in society. He is feared by all because of his appearance, and he learns to despise humankind. His goal is to destroy his creator, Victor Frankenstein. | the monster |
| The younger brother of Victor who falls prey to the monster. | William Frankenstein |
| Another younger brother of Victor who wants to join the military and remains the sole surviving member of the Frankenstein family. | Ernest Frankenstein |
| Victor's father who is a man of character. | Alphonse Frankenstein |
| The kind, devoted wife of Alphonse Frankenstein who dies before Victor leaves for the university. | Caroline Frankenstein |
| He is a professor of Victor's at the University of Ingolstadt | M. Krempe |
| He is also a professor of Victor's who appreciates his passion for learning and encourages him to study science | M. Waldman |
| An old man from France who lives in exile in Germany. He is the father of Agatha and Felix | De Lacy |
| The sea-captain and explorer who meets Victor and learns his story. | Robert Walton |
| The daughter of De Lacey. She is a mild-mannered and sweet girl | Agatha De Lacy |
| The loving son of De Lacy. He marries Safie after helping her father escape from France. | Felix De Lacey |
| Felix's love interest who breaks free from the Arab tradition to marry Felix who is christian | Safie |
| Safie's father who is Turkish merchant in France. He is strongly opposed to Safie's marriage to Felix | The Turk |
| An Irish magistrate who takes care of Victor when he is imprisoned in Ireland | Mr. Kirwin |
| An adopted child of Caroline Frankenstein who is tried for the murder of William and executed | Justine Moritz |
| The sister of Robert Walton and the recipient of his letters. She is married and has children. | Margaret Saville |
