Merlin is a wise old magician who joyfully introduces the play to the audience and sends jack and Annie on their mission to help Mr. Dickens. Look for a lively actor with a commanding speaking voice. Merlin has the option of singing (or not) on the choral parts of the opening and closing songs, so this would be a good role for a strong actor who may not be an experienced singer. With clever costuming, this role could be played by a girl if necessary.