I Know His Voice is a "Just Add Songs" musical. That means there are places in the script for songs, but it's up to you and your team to insert the songs you feel will work best for your production.
Cast of Characters:
Uncle Walter, Joseph, Lying King, Potiphar's Wife, Jacob, Pharaoh
Some Production Ideas:
*Puppets could act out these scenes pantomime style as Uncle Walter narrates
*Shadow Puppets or Flannel Graph Characters, could be used to act out scenes
*Live actors could act out the scene "human video style" along with the narration
*Large Colorful props could be used to show the things being described