Pam Greene

Pam Greene was the wife of Chuck Greene and the mother of Katey Greene. She was infected with the parasite that turns people into zombies, and later killed during the events of "The Las Vegas Outbreak." Pam is the reason why Katey always needs Zombrex to prevent her zombification, having bit her daughter's left arm after she became infected.

Although Pam Greene never appears in any game in the Dead Rising series, Chuck and Katey often think about her in Dead Rising 2.

CAPCOM and IDW Publishing are developing a comic series called Road to Fortune which will shed light upon Pam's identity. It will also explain what happened to the Greene family in Las Vegas, and how Chuck and Katey managed to escape to Still Creek with their lives.

Trivia

 * In the introduction of Dead Rising 2, Leon Bell jokingly mocks Chuck for loosing his wife in Las Vegas, claiming, "I guess you suck at killing zombies otherwise she'd still be around!"
 * It is unclear as to how much of an impact the death of Pam Greene still has on Chuck. What is clear so far is that he doesn't like to talk about it, not even with Katey. It is also clear that when he finally learned the truth behind "The Las Vegas Outbreak" and "The Fortune City Incident", Chuck really began to hate Phenotrans.
 * After Chuck captures him in "Dead Rising 2", Tyrone King reveals that one of the reasons he framed Chuck for the outbreak was that he fit the bill of someone who had a good reason to do such a thing, namely the death of Chuck's wife at the hands of the zombies.
 * Katey's backpack is said to contain all of Pam's things. This is why she cherishes it so much for it is all she has to remember her mother.