Subject, formerly known as Gloria, is a Gourgeist that has vowed to be Discord's faithful servant. She used to belong to Chloe's mom, and she helped bring Discord back to life with Colress. However, she gave up the life she knew to join Discord and assist with his plans. She will be in all four arcs, but she plays a fairly minor role in the overall story.

Gloria's headcanon voice is Circus Baby, from Five Nights At Freddy's.