His big screen roles included Professor Krempe in Mary Shelley's Frankenstein and Minister of Magic Cornelius Fudge in the Harry Potter films.\n\nAnswer this question: who did robert hardey play in harry potter?
Step-by-step reasoning process below:
Minister of Magic Cornelius Fudge
The important part for answering this question is: His big screen roles included Professor Krempe in Mary Shelley's Frankenstein and Minister of Magic Cornelius Fudge in the Harry Potter films.

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So, the answer is Minister of Magic Cornelius Fudge