In the pilot, Sam had the power of telekinesis. After the pilot, the writers changed this premise and now only the vessels that Sam receives have 'powers' used to capture souls.
Yes, the character of Andi was portrayed by Nikki Reed in the pilot. All of Andi's scenes in the pilot were reshot with Missy Peregrym.
No, she didn't use to be a man. That's simply Sock's way of expressing his bitterness over the demise of their relationship.
r43871