| 角色 | 饰演者 | 角色介绍 |
| Kevin | 詹姆斯·麦卡沃伊 | |
| Casey | 安雅·泰勒-乔伊 | |
| Dr. Fletcher | 贝蒂·巴克利 | |
| Claire | 海莉·路·理查森 | |
| Marcia | 杰西卡·苏拉 | |
| Uncle John | 布拉德·威廉姆·亨克 | |
| Hannah | 金·迪莱克特 | |
| Academic Moderator | Line Van Wambeke | |
| High-School Student | Maria Breyman | |
| Cab Driver | Peter Patrikios | |
| Dan at Next Table | Steven Dennis | |
| Dr. Clerque | Jon Douglas Rainey | |
| Zoo Goer | Jalina Mercado | |
| Waiter | Matthew Nadu | |
| Flower Kiosk Worker | Kash Goins | |
| Party Guest | James Robinson Jr. | |
| Policeman #1 | Nakia Dillard | |
| Homeland Security Officer | LeRoy Wilson Jr. | |
| Homeland Security | John Jillard Sr. | |
| Young Casey | Izzie Coffey | |
| EMT | John Mitchell | |
| Traveler in the Station | Andrea Havens | |
| Diner Patron | Barbara Edwards | |
| Bar Patron | Robert Bizik | |
| Businessman / Father | Matthew Bowerman | |
| Female Paramedic | Julie Potter | |
| Caseys Mother | Kelly Werkheiser | |
| Geraldo | Junnie Lopez | |
| Train Conductor | Shawn Gonzalez | |
| Pedestrian | Aleksandra Svetlic.. | |
| Zoo Worker | Michael J. Kraycik | |
| Zoo Worker | Michelle Santiago | |
| Party Guest | Corinne Costa | |
| Boy in Park | Colin Campbell | |
| Zoo Attendee | Michaela Bockarie | |
| Restaurant Patron | Gary Ayash | |
| Police Officer | Jeff Buckner | |
| Restaurant and Mall Patron | Kerry Dutka | |
| Detective | Vincent Riviezzo | |
| Game Show Contestant | Dann Fink | |
| Townsman | Jeffrey Mowery | |
| Game Show Host | Bruce Winant | |
| Caseys Father | Brian Gildea | |
| Mall Shopper / Restaurant Patron | Laura Hart | |
| Diner Patron | Arielle Ingrassia-.. |
