The eyebrows and 'tache unquestionably have a good Mario vibe and the face as a whole has a good Nintendo endorsed friendliness about it. He also looks a lot more like a properly qualified, approved and registered plumber than Mario.
Mario would never make a face like that.
Here we see legendary Liverpool and Scotland midfielder Graeme Souness proudly representing the archetypal 'tach favoured by footballers in the late 70s and early 80s. Flip it 180 degrees and it'd be a dead ringer for Mario's face hair.
It's Super Cuban Revolutionary Mario.
The upward elevation of the 'tache tips is more severe, but Poirot could definitely indulge in a little Mario cosplay without having to make much effort at all. Although, we suppose, he'd have to work on the accent if he really wanted to seal the deal.
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