Use 'inquisitor' to convey someone's strong, probing manner when they question. He approached the interview like an inquisitor, demanding clear answers.
Pro Tip 2/3
Critical Context
Often implies a distrust or skepticism towards the person being questioned. The manager felt like an inquisitor questioning the employee's unusual expense claims.
Pro Tip 3/3
Negative Implication
Can suggest someone is too demanding or intrusive with their questions. The residents viewed the investigator as a nosy inquisitor, crossing personal boundaries.