@Holy Soldier
I say again - whether the character comes to the conclusion of Gods or not, they have no proof.
As for your second point, a God does not pass along any genetics to their child. How could they? Children of Anubis would be running around with deformed, monstrous half human half dog heads. And I'm pretty sure if Odin got the hots for someone outside of Scandinavia he'd chase em down, regardless of the country they originate from. Gods are powerful - they can do that.
Children of Anubis would run around looking whatever the way the writer wants them to look actually.
But from what I'm getting you want normal, average-looking humans to hint at absolutely no supernatural traits.
Are you expecting writers to use real-life images/face claims or what?