| A | B |
| Elizabeth Lavenza | the daughter of a Milanese nobleman |
| Margaret Saville | sister of Robert Walton |
| Waldman | chemist and inventor |
| Caroline | mother of Victor, William, and Ernest |
| Robert Walton | listened to Victor's story |
| The Creature | Murderer (actually physically committed the act) |
| Justine Moritz | a young servant of Madame Frankenstein |
| Henry Clerval | son of a merchant in Geneva |
| William Frankenstein | brother who was murdered |
| Ernest Frankenstein | Frankenstein's other brother who was not murdered |
| Elizabeth Lavenza | Victor Frankenstein's adopted sister |
| Justine Moritz | The girl condemned to death for William's murder |
| Henry Clerval | Victor Frankenstein's closest friend |
| Aggie | The girl cottager |
| Victor Frankenstein | the creator of the creature |
| Safie | the Arabian with whom Felix is in love |
| Waldman | Frankenstein's favorite professor |
| Felix | the boy cottager |
| DeLacey | father of Felix and Agatha |
| Kirwin | magistrate in Ireland |
| Robert Walton | captain of the boat |
| The Turk | father of Safie |