Which personality disorder is characterized by dramatic and erratic behavior?

Narcissistic personality disorder is characterized by dramatic and erratic behavior, primarily due to the individual's pervasive pattern of grandiosity, need for admiration, and lack of empathy. People with this disorder often exhibit an inflated sense of self-importance and may become preoccupied with fantasies of unlimited success, power, or beauty. Their behavior can be unpredictable and attention-seeking, which aligns with the description of being dramatic and erratic. These traits can lead to intense interpersonal conflicts as they struggle to maintain their self-image while demanding acknowledgment and validation from others.

In contrast, dependent personality disorder is marked by a pervasive and excessive need to be taken care of, leading to submissiveness and fears of separation. Paranoid personality disorder involves a pattern of distrust and suspicion of others, which does not align with the dramatic and erratic behavior. Obsessive-compulsive disorder (OCD) is characterized by intrusive thoughts and repetitive behaviors, which are driven by anxiety rather than dramatic or erratic displays. Thus, narcissistic personality disorder distinctly embodies the features mentioned in your query.