|First Appearance||Mind Wars|
|Last Appearance||Mind Wars|
|Allegiance||Unknown Group (formerly)|
|Family||Nick Phillips - Brother †|
Alex - Son †
Josh - Son †
|Cause of Death||Shot in the back by Daniel Weaver.|
|Cooper shot by Weaver.|
Cooper Marshall was the brother of Nick Phillips, and the father of Alex and Josh. Cooper survived in a group with his family before Nick traded them into the Espheni for his safety.
Cooper survived in a large group with his two sons and his brother. After his brother Nick was captured and taken to a Espheni farm, Nick make a trade with the Espheni, and gave up the location of the group, for his and Cooper's safety. Cooper was the only survivor, as the Espheni killed his two sons, Alex and Josh.
Cooper and Nick survived on the road, taking supplies from shelters and farms. At one of their camps, Cooper and Nick are approached by Tom Mason, and when Tom introduces himself they let them rest at the camp, as they know he is the Ghost and think he is a legend. Cooper spends the night talking with Matt Mason, and when Weaver and Matt slept in their sleeping bags, Cooper pulls a gun on and unloads his clip into the bags, thinking they are still in there. On the road, with Tom captured, Cooper feels guilty about killing Matt, and Tom scolds him. Later, when they set up a new camp, they tie up Tom and Nick goes out for firewood. Cooper sits near Tom, and Tom asks him is he had kids, because the way Matt responded to him. Tom tells him about Matt, repeatedly saying his name to get a reaction. Cooper tells him to shut up, and tells him about his sons. Later, when Nick arrives back to camp Tom asks him how he survived, and says that he made a deal with the Espheni to survive. This causes Cooper to question his brother, and Cooper gets a answer out of Nick, confirming that Nick made a deal and got his two sons killed. Soon after, Cooper shoots Nick in the chest, then soon after points his gun at Tom, but is shot and killed by Weaver.
|Season 4 appearances|
|Ghost in the Machine||The Eye||Exodus||Evolve or Die||Mind Wars||Door Number Three|
|Saturday Night Massacre||A Thing With Feathers||Til Death Do Us Part||Drawing Straws||Space Oddity||Shoot the Moon|