Santa Frosty and Rudolf- Who are they?

<p>No Christmas is complete without Rudolf, Frosty and Santa, but even in the Christian myth about the manger and the three wise men, there is no mention of Frosty, Rudolf or Santa. Who are they? A must listen for adults and children alike! Source: <a href='https://youtu.be/MjXj4Bc_rgs%20'>https://youtu.be/MjXj4Bc_rgs  </a></p>