Waiter

The Waiter of Gallerian's Theater is the awakened vessel of Vanity, born from one of the Four Mirrors of Lucifenia. She works as a waitress at the theater but she is willing to do another job if given the chance. She is selfish and whimsy, but later revealed to be sorrowful due to the loss of her "other half", hinting that she might be the reincarnation of Riliane Lucifen d'Autriche.

History
When Gammon Octo was caught for infiltrating the theater and was about to be sentenced to hell by the Clockworker's Doll, Master of the Court, the Waiter intervined with the proceedings, making a deal that in return for Gammon's safety, he will serve the Waiter by doing chores for her. The Clockworker's Doll agreed to the Waiter's request and spared Gammon's life.

The Waiter and Gammon later remarked that they do not know who will emerge triumphant when the end times come.

Heartbeat Clocktower (EC 990)
The Waiter was first mentioned by GEAR in Heartbeat Clocktower as the girl with a pretentious leading part. GEAR remarks on how she was grieved at losing her "other half".

Capriccio Farce (EC 998)
The Waiter makes a bigger appearance in Capriccio Farce, in regards to Gammon's trial. She saved Gammon's life at the last minute, making him do chores instead.

Connections to Other Characters
Gammon Octo: Has a life debt to the Waiter. Her reason for saving his life is unknown.

Conceptualization and Origin

 * Her role and attire as waitress seems to be a reference to the role of Allen Avadonia as servant, reinforcing her link with Riliane. Her attire has a striking resemblance to that of Allen, even going so far as using a ponytail. Whatever that she is (Riliane's reincarnation, the creature born from her Sin, or the Demon of the Vanity), it's quite obvious that she reflects the impact that Allen had on Riliane's life.
 * Her name may also come from the fact that she's waiting for the arrival of her "other half". Her name in Japanese seems to confirm the wordplay, as this literally means "who waits".