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Tim O'Brien

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Tim O'Brien
Tim O'Brien
Biographical information
Place of birth



Flag of United States American


Kelly O'Brien (wife)
Molly O'Brien (daughter)

Physical description




Hair color



O'Brien Family


Deceased[1] as of October 2004[2]

Portrayed by

Sam Trammell


Tim O'Brien was a resident of Gunnison, Colorado who, in 2004, became involved in the Xenomorph outbreak that ultimately led to the destruction of the town.

Tim was killed when a Xenomorph broke into his house; he died attempting to hold the creature off so that his wife Kelly and daughter Molly could escape.


After Kelly's time in the army, it is revealed that he has become Molly's "mother role" after she rejects her mother's attempt to read her a bed-time story. He is killed when Molly says that she saw a monster outside her bedroom window. When he looks outside, an Alien attacks him. As he holds it off, he tells Kelly to take Molly and run. He is unable to overpower the xenomorph, and is killed. Later the same xenomorph is seen apparently feasting on Tim's corpse, it is killed by Wolf, who then melted both the bodies.

Personality and TraitsEdit

A soft spoken person, Tim seemed be a caring father and a loving husband.




  1. Shane Salerno (writer), The Brothers Strause (directors). Aliens vs. Predator: Requiem (2007), 20th Century Fox [DVD].
  2. Paul W. S. Anderson (writer and director). Alien vs. Predator (2004), 20th Century Fox [DVD].

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