Martha and Steven Thompson, from the South Park episode "How to Eat with Your Butt" when a practical joke leads them to mistake Kenny for their missing son, Tommy Thompson, who has a butt on his face
Wendell Vaughn, the alter ego of the comic book superhero Quasar
Seth Voelker, the alter ego of the comic book supervillain Sidewinder
Greg Willis, the alter ego of the comic book superhero Gravity