inquisitor

One who inquires or makes an inquisition, especially a questioner who is excessively rigorous or harsh.

One who inquires or investigates; particularly, one whose official duty it is to inquire and examine: as, the inquisitors of the Holy Office or Inquisition.

An inquisitive or curious person.

An inquisitive person; one fond of asking questions.

One whose official duty it is to examine and inquire, as coroners, sheriffs, etc.

A member of the Court of Inquisition.

A person who inquires, especially searchingly or ruthlessly.

An official of the ecclesiastical court of the Inquisition.

an official of the ecclesiastical court of the Inquisition

a questioner who is excessively harsh