> Here is a photo of John Cena riding a horse.
> Does that give you a better idea how he might look as Porthos?
Yes, John Cena riding a horse looks more like Portos!
Of course I know "La Fille de D'Artagnan" starring Sophie Marceau. My husband is big fan of her (LOL), I think she is very cute in that movie.
There are too many attractive actresses suitable for playing Aramis!