#1 - March 22, 2012, 11:36 p.m.
Blizzard Post
Welcome to the Mists of Pandaria beta! In addition to creating new characters, you will also have the opportunity to copy over existing characters from your Battle.net account to the beta realms. This process is quick and easy, and can be completed by following these steps:

    1) Log into Account Management: http://us.battle.net/account
    2) Under "Your Game Accounts," select the Mists of Pandaria beta license
    3) Click on "Beta Character Copy"
    4) Select which World of Warcraft license you wish to copy a character from and click "Continue"
    5) From the drop-down lists provided, select the realm and character
    6) If the character you select is eligible to copy, it will move on to the next step
    7) Select the Mists of Pandaria beta realm you wish to copy the character to and click "Continue"

The character copy process may take anywhere from a few minutes up to a several hours to complete, but you can track its progress from the "History/Status" tab that is available on the character copy page in Battle.net.

In total, you can transfer up to five characters to the Mists of Pandaria beta. Please note that your Battle.net account must have a World of Warcraft license on it in order to use the character copy feature.

Good luck, have fun, and we hope to see you online!