Red Death

The Red Death appeared in 2010 movie called How to Train Your Dragon. The Red Death was a gigantic member of an unnamed Stoker Class dragon species and the main antagonist of the first How to Train Your Dragon film.

It did not actively hunt for food, as it was delivered to it by other dragons in the nest, acting similarly to a Queen Bee or a Cuckoo Chick. It ate any dragon that did not bring sufficient food as seen when a Gronckle brought it only a single small fish, which offended the Red Death and subsequently led to them being devoured moments later.

True to their reputation as the "queen of the dragons", the only grown specimen seen in the franchise demonstrated a savage, menacing and controlling nature that even a deadly Night Fury was fearful of (at this point it is unclear whether other individuals in the species share this personality). In addition, according to Valka, every nest has their queens, indicating that there could be numerous members of the Red Death's species in the world.