Use this as a tool for your locked and private stories to cover up major reveals or plot twists. Also Use It To Make It Mean You Can't Find The Person For The Role.
Spoiler
Mystery Dude #60
for Mystery Dude #60 in Justice League: United (2007)
Suggested by parzivaljoker
When a monstrous anomaly arises, hellbent on destroying Earth, a group of individuals with abilities must band together to protect the planet.