"Iron" Mike Wilcox is a major character, mission giver and ally in Days Gone.
Iron Mike had spent decades working for the Forest Service managing the wilderness in the Cascade range, which he knows more about the area. He was married to his wife Elizabeth for 30 years until she died from cancer.
In the early months of the apocalypse, Iron Mike was part of Sherman's Camp, which was made up of surviving law enforcement and civilians. Eventually, two factions formed in the camp, creating an increasingly hostile situation within the settlement. A meeting was set up between both sides, as it was believed that everyone had run out of ammunition, but it was quickly discovered that only one side actually had. Everyone killed each other, save for Mike and Nora, who barely escaped the carnage with their lives. This incident deeply scarred Mike, making him to repudiate violence.
Sometime after the Sherman's Camp massacre, Mike formed another group in Lost Lake, which had the goals of pacifism between all survivors in mind, still shaken from the carnage in Sherman's Camp. Among his core members were Skizzo, Rikki Patil, and Addison Walker. Deacon St. John and Boozer eventually joined Mike's camp and helped it greatly. Mike and Deacon became close at this time. However, Deacon's violent way of handling situations led to a falling out between the two, with Deacon telling Mike to "go fuck himself." Shortly after, Deacon and Boozer left, and they were barred from returning there.
Events of Days Gone
Two years after the end of civilization, Iron Mike established a tentative peace with the Rippers and causing some of members of his camp, especially Skizzo, to be very skeptical and disapprove of this agreement.
Deacon and Boozer have been avoiding Iron Mike's Camp for over a year, doing jobs for other settlements. Eventually, after Boozer's arm is burnt and contracts blood poisoning, Deacon is forced to take Boozer there. Initially uneasy with returning, Deacon is gradually accepted back there, as word of his good deeds has reached the safe zone. Deacon eventually tells Mike of his plan to reduce the Freaker population greatly: destroying their caves. Mike quickly warms up to Deacon's idea and they set out to find explosives across the region.
The two stop at Sherman's Camp to retrieve a map with the locations of registered TNT owners. There, Mike shows Deacon how everyone killed each other and explains how this brought about his basic belief in pacifism. After taking the map off the body of the police commissioner, the two are ambushed by Marauders and are forced to kill them all. When they return to camp, it becomes clear that Mike and Deacon have a much better understanding of each other than before.
Iron Mike cares very much for his settlement. Being a survivor of Sherman's Camp left him traumatized and guilt-ridden in which he admitted to Deacon that he often wished that he hadn't walk out the massacred town alive. The incident at Sherman's Camp made Mike to develop his pacifistic views, refusing to solve situations with other human survivors through violent means, and believing that human cooperation would one day rebuild their civilization and overcome the Freakers. However, Mike's pacifism risk the lives of those he supposed to protect due to the ever present of the Rippers.