Sky Creeper is a man who has a reputation that goes before him. While his identity is still unknown (all youth records are sealed), he's renowned as an international thief, having pulled off capers of unbelievable levels. It's not so much that he's the most proficient thief. It's more that he has extremely unorthodox methods of evading capture. Usually via a glider of his own contraptions. He is secretly a billionaire with a simple life when not on duty.