Kane
Within the WWE canon, Kane started off as a mysterious masked man with a dark back story. He was big and intimidating, and he usually managed that effect with few, if any words on the microphone.
But the man behind the mask, Glenn Jacobs, is a politically savvy individual with aspirations of holding public office, and Jacobs also owns an insurance agency. That dichotomy between dominant in-ring performer with a dark side and intellectual real-life personality would be incredibly interesting.
Edited by Staff Editor