Barbie is an egotistical, narcissistic, and manipulative woman who has a bad temper and is rude, even to her own drug supplier. Very much like her brother, she has very arrogant, selfish, dependent, and demanding traits, and is easily triggered when things don't go her way.

She is also cunning and has a low opinion of humans, considering them to be easy to manipulate, as she can easily use her seductive feminine charms to woo her victims into doing her bidding.