Tim O'Brien

From Xenopedia

Molly's father and Kelly's husband. After Kelly's time in the army, it is revealed that he has become Molly's "mother role" after she denies her mother 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 him off, he tells Kelly to take Molly and run. He is unable to overpower the Alien, and is killed.