charlatan|charlatans

那个自称能预知未来的算命先生其实是个骗子。

The fortune-teller who claimed to predict the future was just a ___charlatan.

那些所谓的算命大师不过是些利用人们迷信心理的江湖骗子。

Those so-called fortune tellers are just ___charlatans preying on people's superstitions.

那个所谓的医生其实是个骗子，开的药方都是假的。

The so-called doctor turned out to be a ___charlatan, prescribing fake remedies.