The Pantheon

The Pantheon of Discord was a group of transcental beings that sought to alter reality and cause chaos. The Trickster was an embodiment of one or more members of the Pantheon. The Doctor had heard legends of the Pantheon when he was a child and claimed to have fought the shadows and the changelings of the Pantheon in the past. (SJA: The Wedding of Sarah Jane Smith).

The Doctor stated that there were many demons to choose from within the Pantheon of Discord. (DW: The Satan Pit)

It is unknown if members of the Trickster's Brigade are also members of the Pantheon. It is also unknown if the other Pantheon members, like the Trickster, were removed from the Universe and could only appear when someone is about to die. It is possible that humans could join the Pantheon because Clyde pretended that he wanted to be a member. (SJA: The Wedding of Sarah Jane Smith)