In Doctor Who , a "Harbinger" is an entity whose role is to announce or herald the arrival of powerful gods from the Pantheon of Discord, a group of chaotic and godlike beings. These Harbingers appear as characters or figures that foreshadow the coming of these gods, often with mysterious or cryptic behavior. For example, in the series, characters like Maestro and Mr. Ring-a- Ding serve as Harbingers for their respective gods, with Mr. Ring-a-Ding revealed to be Lux Imperator, a god of light and a member of the Pantheon
. Harbingers are sometimes depicted as having names that follow an "H. Arbinger" pseudonym pattern, which may not be their real names but rather a way to communicate their purpose to humans. They might not be born as normal humans but instead form out of the existence of the gods they serve
. These entities are integral to the unfolding narrative involving the Pantheon of Discord, acting as precursors to the gods' arrival and often involved in the dramatic and sometimes surreal events surrounding these powerful beings. The Harbingers are not just messengers but also part of the mystical and cosmic elements that enrich the Doctor Who universe
