Hedorah, also known as the Smog Monster, is a kaiju monster who first appeared in Toho's 1971 film Godzilla vs. Hedorah. The monster was named for Hedoro, the Japanese word for sludge, slime, vomit or chemical ooze.
Following the thunderous battle between Godzilla and the Titans that leveled San Francisco and the shocking new reality that monsters are real, Season 1 of Godzilla and The Titans explores one family's journey to uncover its buried secrets and a legacy linking them to the secret organization known as Monarch, setting the stage for not only the past of the MonsterVerse, but the future as well.