Who is Lucifer's mother in the eponymous TV-show?

In the comics Lucifer and his brother Michael are spontaneously created by their father Yahweh in order to act as the catalysts of creation. Michael was given the demiurgic power to create, while Lucifer was given unending Will which he used to shape creation.

The only motherly figure in the series is that of Lilith, the first woman. Her countless relations with men produced her army of offspring known as the Lilim. Mazikeen is one of the eldest and becomes the leader of the Lilim later in the comics. It seems highly unlikely for them to use this version of Lilith since she has offspring with Gabriel and speaks with Lucifer in her bedchambers, acting as more of a confidant than anything in the eyes of Lucifer.

According to the first episode of Season 2, Lucifer's mother is another "celestial being" of roughly the same sort as Lucifer's father, God.

Lucifer's parents "begat" all of creation, including the higher angels, who refer to them as "mom" and "dad". So far, "mom" has not been given any other name on the show.

According to Lucifer, when God cast him out of heaven, mom did nothing to help him, leaving him feeling abandoned. Later, as God spent more time with humanity and less with her, mom lashed out and started sending natural disasters to Earth. God responded by casting her into hell. Lucifer chose to do nothing, leaving his mother locked up in Hell (where apparently Maze tortured her).

In the show, she's being played by Tricia Helfer, of Battlestar Galactica fame. (In a cool easter egg, her first appearance on the show was preceded by Lucifer playing "All Along The Watchtower" on the piano.)