interrogator
n. 讯问者; 审问者; 质问者; 询问器
If someone, especially a police officer, interrogates someone, they question them thoroughly for a long time in order to get some information from them.
I interrogated everyone even slightly involved.
我讯问了每个人,甚至连稍有关联的人都没放过。
1. a questioner who is excessively harsh
No, I was not mad, but my interrogator was furious.
不, 我没疯, 只是质问我的人怒不可遏.