No.
So, you think that somebody who's never heard of God or His Church will just, by magic, convert to something he's never heard of?
Conversion is a decision, and even an ignorant person must have a minimal bit of information before he can make a decision.
Where does that information come from, if not from a human agent?
Was there a human agent involved when God gave Moses the Ten Commandments?
It's clear that 'somebody' has never experienced a true conversion.
As a friendly word of advice, please read ch.3, Article 1 of the CCC. That will keep you from sounding like you know absolutely nothing of the faith.
I really wasn't going to get into this discussion, but you are so deluded, as to be misrepresenting the faith. This is one of the richest chapters in the whole CCC
A preview: "It is the Holy Spirit who reveals to men who Jesus is. For 'no one can say 'Jesus is Lord' except by the Holy Spirit."
"Faith is a gift of God. A supernatural virtue infused by Him. Before this faith can be exercised, man must have the Grace of God to move and assist him; he must have the interior helps of the Holy Spirit, who moves the heart, and converts it to God."
Man does not truly move another man to God.
Glory be to the Father, the Son, and the Holy Ghost.