Answer:
Antisocial personality disorder.
Step-by-step explanation:
If Voldemort were seeing a psychologist, the diagnosis that would be the most appropriate would be an antisocial personality disorder. This personality disorder has been described in the DSM Diagnostic and Statistical Manual of Mental Disorders. It is also referred to as psychopathy o sociopathy. It is defined as disrespect of social norms and for the feelings of others.