Possible Clues:

• Another version of the late ogre comes to grief
• Other half to make changes? Say nothing!
• Diana Prince, to Wonder Woman
• Superhero’s secret
• Change, say, before seeing old trusted friend
• Get real after developing love for Ziggy Stardust?
• Self-made person?
• The second self?
• Get a role cast for bosom buddy
• Tony Stark, to Iron Man