Bob is a character featured in "Z Nation", first encountered in Season 3 episode 6 "Doc Flew Over the Cuckoo's Nest"
Nothing is known about Bob's life prior to the outbreak except that he was a patient at a clinic for the criminally insane.
Held at the clinic by Nurse Ratched, Bob undergoes lobotomy and is subjected to some cruel experiments. He eventually kills Ratched when she tries to lobotomize Doc. He then drives off with the other patients in a bus.