The Red Death is a major antagonist in the How to Train Your Dragon franchise, serving as the main antagonist of the 2010 animated feature film How to Train Your Dragon, based on the original book of the same name, a major antagonist in Dragons: Rise of Berk and School of Dragons, and a posthumous antagonist in the rest of the franchise.
He is the tyrannical and ravenous dragon who enslaved the dragons to attack humans and bring food to satisfy his gluttony. The Red Death was eventually defeated when Toothless, one of his former servants, showed Stoick the Vast the way to his lair, with Stoick's son Hiccup Horrendous Haddock III teaming up with Toothless to stop his master in killing Stoick's crews.
His vocal sound effects were provided by Frank Welker.