- Hughes de Payens - Founder of the Knights Templar
- Bernard de Claivaux - Designer of the rule of the Knights Templar
- Brother Francis - Leader of the Council at Castle Cross
- Athena - Headmistress at Castle Cross
- Magus - Headmaster at Castle Cross
- Albertus Magnus - Council Member at Castle Cross
- Brother Gerard - Founder of the Knights Hospitaller
- Trent White - Son of Sarah and Martin White, now deceased
- Randall Pickett - Grandfather of Trent White
- Sunzi - Trainee at Castle Cross; Trent's Roommate
- Emily Rose - Trainee at Castle Cross
- Abigail Bloom - Trainee at Castle Cross
- Kahina - Trainee at Castle Cross
- Masuro - Trainee at Castle Cross
