In an interview with Joshua Jackson, he describes his characters's father, Walter Bishop, as the Wizard of Oz and describes their relationship. Joshua goes on to say what we can expect when the show returns on April 7.
All commands will come through the headphones. Once you're given the order to put on the headphones, do not remove them under any circumstances. If you do, you may die a gruesome and horrible death. Thank you for your attention and have a nice day.