Almost Genius
Striker
Pretty sure he's been a face non-stop for over a decade now.
Has there been any other wrestler who has been a face/heel for that long a time? Only really watched it from 2001-2005 but can only think of Rob Van Dam who was either a face or a heel throughout that whole period of me watching WWE, even Shawn Michaels turned heel for a few weeks in his feud with Hogan.
Ted dibiase stayed heel iirc