Is pcp a non-addictive mildly addictive highly addictive or psychologically addictive drug?

PCP (angel dust) is a schedule II drug in the USA. It may lead to severe psychological or physical dependence. It can cause such side effects that it is not even used as a sedative in animals. It can cause schizophrenia in humans that can last for months.

Best to call it highly addictive as it is a Schedule II.