Trigon

Starfire was initially believed to be on Earth to stop Rachel, only to discover the true threat was her demonic father, Trigon.

Still, Raven endures a lot of pain and trauma because of Trigon which has resulted in her seemingly emotionless state as well as her intense powers.

The ending of that first season defined Trigon () as the Titans' nemesis.

The show featured Robin, Cyborg, Starfire, Raven, and Beast Boy, and included some of their most well-known antagonists such as Deathstroke, Trigon, and Brother Blood.

Thus, Jason's sessions will go a long way to leveling Tim up, especially because Jason has experience against the cult from the first Trigon war.

When Damian Wayne is killed in Justice League Dark: Apokolips War, Raven loses control of her powers, which results in her father, the demon Trigon, being set free.

Remember, Jude: any attempts to escape will result in you being forced to mediate a millennia-long therapy session between Trigon and his offspring.

All hope seems lost when Trigon takes on the Titans, prompting Raven to revert to her true identity.

Trigon DM analyst Dominik Niszcz said in a note that Huawei was likely to be classified as a "moderate risk" vendor, meaning operators would not be able to buy new supplies from it, but would not have to replace 4G equipment.

She then went on to rapidly defeat her villainous and demonic father, Trigon.

The season 2 premiere was unclear quite what happened, but it looked as though Rachel was able to force Trigon back into his home dimension.

This change of plans goes some way to explaining why Trigon is absent from the recent marketing campaign - because the demon was likely supposed to be dealt with in the original season 1 finale.

Three months after their encounter with Trigon, Dick is hard at work training Rachel, Gar & Jason in Titans Tower.

Unless they've all decided to seriously goth-up their style, it's safe to assume they're also under Trigon's spell.

While he has tried to train her in his dark ways, Trigon's only reason for giving birth to Raven was so that he may use her as a portal to our universe and conquer it.

Based on character descriptions (particularly Raven’s) it seems likely that the first season will have the Titans facing off against Raven’s demon father Trigon.

In an attempt to turn the former Boy Wonder, Trigon had lured him into a dream world in order to bring out his dark side with his literal worst case scenario.

In the comics, Raven is the daughter of Trigon, a powerful demon who seeks to conquer the Earth.

Trigon was also briefly summoned to Earth to sire a daughter (i.e. Raven) who could act as a doorway to allow him to return to our reality permanently.