The earliest printed reference to the original proverb is attributed to the British playwright Ben Jonson in his 1598 play, Every Man in His Humour, which was performed first by William Shakespeare.

Answer this question based on the passage: who said the quote curiosity killed the cat? Let's have some stream of consciousness first.
This is the relevant information: The earliest printed reference to the original proverb is attributed to the British playwright Ben Jonson in his 1598 play, Every Man in His Humour, which was performed first by William Shakespeare. So, the answer is the British playwright Ben Jonson.