Mama Bear: She tells the interviewer about the first zombie attack she experienced, during which one of the zombies grabbed her daughter. Mary Jo admits that she really doesn't remember exactly what happened, but says that according to both of her children, she ripped the zombie's head off with her bare hands.
The Danza: Ajay Shah is portrayed in the audiobook by Ajay Naidu.
Adorkable: Throughout his interview Forbes rambles, stammers, and trips all over himself trying to apologize for anything he says that people from other countries might find insulting. At one point early in the interview he almost gives up entirely and is only persuaded to continue after asking the interviewer to promise to "cut all the daft bits."
Just Following Orders: Defied. Although he complied with the order to withdraw and abandon the civilians his unit was protecting after his commanding officer threatened to enact decimations the way the Russian military did, he fully acknowledges and accepts responsibility for choosing to do so. He planned to personally assassinate his commanding officer in retribution, and is bitterly disgusted that the general committed suicide before he could do so rather than accept responsibility for giving the order.
Ascended Fanboy: As the outbreak progressed, he stayed in his room and on the internet poring over discussions of the war right up until the power went out and he realized he had no actual skills, experience, or support to make use of his information. Only through luck did he manage to escape and meet his Sensei, who would teach him true badassery.
Hate Sink: He is pretty much there just to be hated.
Jerkass: Scams countless people out of millions of dollars, laughs his head off when most of his buyers ended up infected, brags about scamming people out of their money, and taunts people about the fact that in his safety dome, he is protected against zombies, and because he's in another country, the police can never arrest him.
Jerkass Has a Point: He notes that what happened is partly the governmant's fault, since they could have checked to see if any of his vaccines had actually been tested, and that while he did knowingly sell untested vaccines, many doctors have given untested Flu shots. He also notes that even if his vaccines didn't work, the belief that there was treatment, kept people from panicking, and that after the truth got out, it wasn't long before panic and fear caused things to spiral out of control.