| | | | One |
| | Marisha | | A physicist. |
| | Mikhail | | Marisha's husband. A mathematician. |
| | | | Two |
| | Bortsov | | One of the kidnappers. |
| | Gusev | | Bortsov's partner. |
| | | | Part 1 |
| 1 | Brandt | Savage | Protagonist. |
| | Barton | | Brandt's colleague. |
| | Purple | Hair | One of the students. |
| | Natalie | | Brandt's department admin. |
| 2 | Ulrich | | Brandt's department head. |
| 4 | Alexei | Kamenev | The headmaster. Meed's headmaster. |
| | Lyudmila | Garin | The matron at preschool girl's dormitory. |
| 5 | Professor | Racine | One of Brandt's co-teachers. |
| 6 | Meed | | The girl who kidnapped Brandt. An Assassin. Aka: Belinda Carlisle, Kira Sunlight. |
| 7 | Irina | | The copper-haired girl at the dormitory. Meed's classmate. |
| 9 | Annika | | One of the students who led a hiking. |
| | Bystro | | One of Kamenev's students. |
| | Zhir | | One of Kamenev's students. |
| | Chernit | | One of Kamenev's students. |
| 12 | Margaret | Mead | An American cultural anthropologist. |
| 16 | Mazen | | Kamenev's guest. |
| 18 | Gunich | | Meed's instructor. |
| 25 | Cobra | Neck | The guy who attacked Brandt. |
| 26 | Abrafo | Asare | The former Ghanaian Minister. |
| 32 | Rishi | | Meed's former classmate. |
| | Ilya | Lunik | Irina and Meed's instructor. |
| 35 | Evan | Grey | Missing. |
| | Devon | Grey | Evan's father. |
| | Anna | Grey | Evan's mother. |
| 41 | Amy-Anne | Roberts | A news reporter. |
| 44 | Gregor | Mason | The gallery owner. |
| | Annika | | Gregor's assistant. |
| | | | Part 2 |
| 54 | John | Sunlight | Meed's great-grandfather. Doc Savage's mortal enemy. |
| | Doc | Savage | Brandt's great-grandfather. Aka: Clark Savage Jr. |
| 55 | Jamelle | Maina | A sprinter. The mother of the baby that Irina kidnapped. |
| | Luanna | Phiri | Jamelle's teammate. |
| 57 | Calvin | Savage | Doc Savage's twin brother. |
| 64 | Jaco | Devos | Jamelle's private investigator. |
| 67 | Angelo | Chinelli | A chemist. |
| | Lucia | Chinelli | Angelo's wife. |
| | Carmella | Chinelli | Angelo and Lucia's daughter. |
| 82 | Balakin | | The school's security officer. |
| | Petrov | | The school's security officer. |
