Seviathan von Eldritch

Seviathan von Eldritch is Charlie's ex-boyfriend and the brother of Helsa von Eldritch. He is an upcoming character in Hazbin Hotel.

Appearance
Seviathan has dark bluish gray skin and dark green hair with gray roots. He has dull red eyes with neon green irises. He has thick eyebrows and his mouth is filled with neon green colored sharp teeth.

In a portrait, he is seen wearing a green coat with neon green trimmings, green pinstriped pants and a green hat with a light green trim that has eyes and a toothed brim. His suit is accompanied by a neon green ascot and undershirt.

Charlie Morningstar
As seen in a portrait of the two of them during what appears to be a high school prom, Seviathan appears to have previously dated Charlie during her younger years. However, they ended up breaking things off for yet unknown reasons.

Helsa von Eldritch
Helsa is Seviathan's sister. According to Faustisse, the two have a neutral sibling relationship. While Helsa and Seviathan don't hate each other, they also don't particularly appreciate each other and are busy with their own activities. It is unknown if Charlie and Seviathan's romance affected his sibling relationship with Helsa, given her apparent antagonistic relationship with Charlie.

Trivia

 * Charlie being in a previous relationship was first mentioned in Vivziepop's Twitter. Pictures of Seviathan and his family can be seen with the royal family all over the Hotel as the two families are of elite standing.
 * Seviathan's name is a reference to Leviathan, a creature that takes the form of a sea serpent in the Book of Job of the Hebrew Bible, with "S" replacing the "L".
 * He is described as a "big jerk chad", and not exactly evil so much as he is ignorant.