William

PPC Agents

 * William Archer - Department of Floaters - written by Fynn
 * William "Bill" Fallis - Department of Mary Sue Experiments and Research - written by Lily Winterwood
 * William Grey - Department of Mary Sues - written by Matt Cipher
 * William Marshall - Department of Implausible Crossovers - written by Cassie Cameron-Young
 * Shay Williams - Department of Floaters - written by Bubonic Woodchuck
 * Ted Williams - Department of Floaters - written by Lily-Sinful

Canon Characters

 * William "Bill" Adama - Battlestar Galactica

Real World People

 * William Shakespeare - playwright