Harrold White

James knew Harrold pre-apocalypse since he was living in a nearby village.James describes him as a pain in the ass, a word he rarely uses. He says he had arguements with everyone and was always grumpy and rude.
Despite this, he holds William in high-esteem, since he is fond of his career in the military and past wars. He holds America and its ideals in high esteem as well, and being a true conservative he wants everything done by the rules. Wheen he sees the younger kissing, he yells and reports it to their parents, saying they should restrain their children, going as far as to call the girls little whores.In battle though, he is quite useful, since despite his declining health and endurance, he is still a great shot. He says he sees like a hawk, despite his age.
He also had children before the apoclypse, but they left to live with their families and he hasn't heard from them since. He tries to hide the fact that he is upset by being rude, like when he learned Michael's children returned to him, he said his sons were cowards who couldn't even make it to their father. Others suspected though that his children may not have even tried to contact him, since as James said they argued constantly
Harrold was the first one to see Mat and Sandra have sex and immediatelly told Ray and Michael, yelling about it and letting everyone know, as well as being rude such as calling Sandra a little whore. Michael and Ray are offended and Ray almost fights him. Michael calms them both down and cuts Harrold, telling him what happens in their families is their problem and not his. Harrold then goes away, mumbling about how if these children had all their parents they would be fine. William later talks to him and asks him to be more polite, and Harrold listens.
When the alien troops attack for the first time, he helps evacuate the civilians and stays behind. He kills a few aliens before he is overwhelmed andone of the huge aliens goes to step on him, but he shoots him in its weak spot (under the hand) and kills it. The creature falls on top of him but doesn't kill him. He is saved a while later and taken back to the group where everyone has more respect for him. 
After this event, Christine Harris gets close to him. Herself being a woman of family and wife of an army man, he has come to respect her as well, and he reminds her of her father, who was also an army man. When she argues with William over his duties, he is all but soft with her though, as sometimes he is harsh, cruel and unkind with her when he gives advice. His advice proves valuable to William thhough, who can focus better on the group problems rather than his wife.