David Suchet believes that Hercule Poirot's distinctive character traits have rubbed off on him.
The actor is waving goodbye to the screen incarnation of the Belgian detective created by the crime writer Agatha Christie after 25 years.
He has filmed his final scenes as the moustachioed sleuth and Curtain: Poirot's Last Case will be broadcast on ITV later this year.
"He's taught me to be a much better listener than I would have been had I never played him," he said.
David said of the character's enduring appeal: "He's very respectful and he's very charming, but my son-in-law gave the best answer, which is that 'Poirot is enduring because he's a great moral compass and people would like to be him'.
"Whenever you watch him, as he sums up a case, you think the world is a better place."
:: Poirot: Elephants Can Remembers is a one-off drama airing on ITV1 on Sunday, June 9.