| 角色 | 饰演者 | 角色介绍 |
| Josh Shannon (11 episodes 2011) | 兰顿·莱伯隆 | |
| Mira (11 episodes 2011) | 克里斯汀·亚当斯 | |
| Jim Shannon (11 episodes 2011) | 杰森·奥玛拉 | |
| Zoe Shannon (11 episodes 2011) | Alana Mansour | |
| Commander Nathaniel Taylor (11 episodes 2011) | 史蒂芬·朗  | |
| Dr. Elisabeth Shannon (11 episodes 2011) | 舍利·考恩 | |
| Maddy Shannon (11 episodes 2011) | Naomi Scott | |
| Guard? (2 episodes 2011) | Byron J. Brochmann | |
| Traveler Nic (1 episode 2011) | Joel Amos Byrnes | |
| Arthur Chang (1 episode 2011) | Jason Chong | |
| Max (2 episodes 2011) | Eka Darville | |
| Tasha (1 episode 2011) | Aisha Dee | |
| Mark Reynolds (8 episodes 2011) | 迪恩·盖耶 | |
| Guzman (1 episode 2011) | 米多·哈马达 | |
| Skye (11 episodes 2011) | 艾莉森·米勒 | |
| Teo (1 episode 2011) | Dan Mor | |
| Hunter (3 episodes 2011) | Sam Parsonson | |
| Carter (5 episodes 2011) | 达米安·瓦舍-霍灵 | |
| Well Wisher Mimi (1 episode 2011) | Ceallach | |
| Newscaster (1 episode 2011) | Laura Whitnall | |
| Peter (1 episode 2011) | Valentino del Toro | |
| Lt. Alicia Washington (10 episodes 2011) | 西蒙娜·卡塞尔 | |
| (1 episode 2011) | Tonia Renee | |
| Dr. Malcolm Wallace (10 episodes 2011) | Rod Hallett | |
| Boylan (5 episodes 2011) | 达米安·加维 |
