| | | Nicholas Hoel |
| David Henry | Thoreau | An essayist, poet and philosopher, and abolitionist in Concord. |
| Jorgen | Hoel | A new arrival in Prospect Hill in Brooklyn. |
| Vi | Powys | Jorgen Hoel's wife. |
| John | Hoel | Jorgen and Vi's eldest son. |
| Carl | Hoel | John's elder son. |
| Frank | Hoel Sr. | John's younger son. A farmer. |
| Frank | Hoel Jr. | Frank Sr.'s son. A photohrapher. |
| Eric | Hoel | Frank Jr.'s son. |
| Nicholas | Hoel | Frank's great great grandson. |
| | | Mimmi Ma |
| Ma | Sih Hsuin | An electrical engineer. Aka: Winston Ma. |
| Ma | Shouying | Sih Hsuin's father. A master calligrapher. |
| Charlotte | Tarleton-Ma | Sih Hsuin's wife. |
| Mimmi | Ma | Sih Hsuin and Charlotte's daughter. Douglas's lover. |
| Amelia | Ma | Mimmi's sister. |
| Tarleton | | Mimmi's grandfather. |
| Carmen | Ma | Mimmi's sister. |
| | | Adam Appich |
| Adam | Appich | A boy who had a maple tree. |
| Jean | Appich | Adam's sister. |
| Leigh | Appich | Adam's sister. |
| Emmett | Appich | Adam's sister. |
| Charles | Appich | Adam's brother. |
| Leonard | Appich | Adam's father. |
| R.M. | Rabinowski | Head of the Department of Psychology Fortuna College. |
| | | Ray Brinkman and Dorothy Cazaly |
| Ray | Brinkman | A junior intellectual property lawyer. |
| Dorothy | Cazaly | Ray's wife. A stenographer. Aka: Dory. |
| | | Douglas Pavlicek |
| Douglas | Pavlicek | A technical sergeant. |
| John | Wayne | The prison guard. |
| Chief Plenty | Coups | The Belgian draft horse. |
| | | Neelay Mehta |
| Neelay | Mehta | A Teacher. |
| Babul | Mehta | Neelay's father. |
| Ritu | Mehta | Neelay's mother. |
| Ms. | Gilpin | Neelay's teacher. |
| | | Patricia Westford |
| Patricia | Westford | A Scientist. Aka: Patty. |
| Bill | Westford | Patty's father. |
| Henry | Fallows | A researcher in Dreier Research Station. A senior scientist. |
| Jason | | Henry's colleague. |
| Dennis | Ward | The Dreier Research Station manager. |
| Eden | | Patty's colleague. |
| | | Olivia Vandergriff |
| Olivia | Vandergriff | The protagonist of the story. A girl that Nick met. |
| Davy | | Olivia's husband. |
| | | Trunk |
| Britannica | Man | The director of R&D. |
| The Q.C | Guy | A man who wants Mimmi's job. |
| Dum | | Douglas's takers. |
| Dee | | Douglas's takers. |
| Gena | | Neelay's caregiver. |
| Moses | | An older man that Nick and Olivia met. |
| Henry | Hanson | The junk bond king. |
| Anne | Frank | A German diarist. |
| Chris | | The Interviewer of Neelay. |
| Rubin | Rabinowski | Adam's professor. |
| Mieke | Van Dijk | Adam's professor. |
| Watchman | | Nick and Olivia's co-camper. |
| Maidenhair | | Nick and Olivia's co-camper. |
| Loki | | Nick and Olivia's guide. |
| | | Yggdrasil - The world tree. |
| Rupal | | Neelay's caregiver. |
| Sparks | | Loki's colleague. |
| Alan | | Dory's lover. |
| Sheriff | Sanders | A policeman in Oregon. |
| Brendan | Smith | A human resource agent. |
| Garreth | | Mimmi's colleague. |
| Spinoza | | Douglas's friend. |
| Mulberry | | Adam's friend. A camper. |
| Marten | | A marathoner. |
| | | Crown |
| Mr. | Shiang | The head of Four Arts Gallery. |
| Carlos | | The mobile care. |
| Reba | | The mobile care. |
| Elizeu | | The tour guide of the campers. |
| Rogerio | | The interpreter. |
| Elvis | Antonio | One of the tour guides of the campers. |
| Stephanie | N. | Mimmi's visitor. |
| Rasha | | Mimmi's student. An honor student. |
| Robinson | | Mimmi's student. An honor student. |
| Boehm | | Mimmi's student. An honor student. |
| Lois | Appich | Adam's wife. |
| David | | Adam's interrogator. |