| 角色 | 饰演者 | 角色介绍 |
| John Burroughs | 威廉·麦鲍瑟 | |
| Rhoda Williams | 布丽特·马灵 | |
| Maya Burroughs | 梅甘·列侬 | |
| Dr. Joan Tallis | Diane Ciesla | |
| Alex | Matthew-Lee Erlbach | |
| Kim Williams | Jordan Baker | |
| Robert Williams | Flint Beverage | |
| Symposium Speaker | Joseph A. Bove | |
| Career Counselor | Natalie Carter | |
| Symposium Speaker | Bruce Colbert | |
| Conspiracy Theorist | 阿里·高尔 | |
| Symposium Speaker | Jeffrey Goldenberg | |
| Claire | Ana Cruz Kayne | |
| Purdeep | 库玛·帕拉纳 | |
| Keith Harding | Rupert Reid | |
| Symposium Speaker | Ana Valle | |
| Federico | Luis Vega | |
| Himself | DJ Flava | |
| John's Son | AJ Diana | |
| Symposium Speaker | Paul Mezey | |
| Himself (as Dr. Richard Berendzen) | Richard Berendzen | |
| Symposium Speaker | Shannon Maliff | |
| Symposium Speaker | Stephanie Le Blanc | |
| Symposium Speaker | Jasmine Andrade | |
| Symposium Speaker | Kara Tweedie | |
| Television Reporter | Yuval Segal | |
| Radio Reporter #1 | Robert Phillips | |
| Television Anchor | Hollyce Phillips | |
| Radio Reporter #2 | Rich Habersham | |
| Nurse (as Jennifer Jaramillo) | Jennifer Jaramillo Valkana | |
| Television Interviewer (as Steve 'Major' Giammaria) | Steve Giammaria | |
| Keith Harding's Secretary | Rebecca Price |
