Jiraya is not Naruto's grandpa. but he did name him. he got the idea when he was at the Ramen shop and the 4th hokage was talking about what he should name the baby.
you find out everything here http://naruto.wikia.com/wiki/
in the film his last name is boltenand in life is last name is effron
Athena didn't have a last name. She had names following hers, but not a last name.
Chiron did not have a 'last name'.
Hidans religion is pretty much about him killing people as sacrifices Jashin, not much is known about it.
akatsuki, but Hidan isn't the leader.
Hidans blood type is B.
If he has a last name, it hasn't been revealed yet. Most characters in Naruto only has one name.
She doesn't have a last name.
i do not know her last name
Yup. His name is Minato Kamikaze. Naruto takes his last name from his mom.
Yakushi
well actually haku doesn't have a last name in naruto.
Masashi Kishimoto is the author of Naruto.
His full name is Kiba Inuzuka
They never gave him a last name.His real name is still Deidara though.