Re: Dr. Chakrabarti
My kind of zombie only goes full Romero when we're deprived of brains for a long period of time. Otherwise, we're pretty normal. We do take on characteristics of whoever's brains we consume, unless we mush them together with multiple brains to create a type of brain mash. That's the only way to prevent us from taking on personality traits and memories of the deceased.
All zombies that I'm friends with in my world and myself only eat the brains of those that were deceased by other means - accidents/natural causes/etc - and we don't go out hunting people down to eat their brains. The only reason I'm not out about my Z status is because not everyone is the talk first, action later type.