 | |
| Kelly O'Brien | |
| Continuity: | Aliens vs. Predator |
| Notability: | Main character |
| Type: | Military personnel |
| Occupation: | Soldier |
| Gender: | Female |
| Race: | Human |
| Location: | Crested Butte, Gunnison County, Colorado |
| Associations: | United States Army |
| Relatives: | Tim O'Brien Molly O'Brien |
| Status: | Alive |
| First: | Aliens vs. Predator: Requiem |
| Actor: | Reiko Aylesworth |
Kelly O'Brien is a fictional soldier and a central character featured in the Aliens multimedia franchise and the Predator film series. Played by actress Reiko Aylesworth, she appeared in the 2007 film Aliens vs. Predator: Requiem.