Hiidrala

Hiidrala is the supreme ruler of the Daagon and former guardian of the Heart of Darkness.

The Cosmic Ocean
After the Daagon learned of their affiliation with the Utrom, they escorted the turtles, Professor Honeycutt, April, and Casey to Hiidrala to request her consent retrieving the Black Hole Generator from her. Hiidrala quickly questioned whether or not they were worthy of claiming a device of such devastating power, and ask which of them was leader. When Leo steps forward, Hiidrala doubted him because of his youth, and again asks what makes him worthy. Leo makes his case giving her a brief history of the turtles success and witnessing the destruction of Earth, and Donatello asserted that they need fragment to destroy it. Hiidrala though that idea was preposterous, as the Heart of Darkness is indestructible. However, she ultimately decided to allow the turtles to take the fragment if the Cthuga, a creature who only consents only those who are worthy to pass, allows it.

Soon after, hijacked the Ulixes and forced the heroes to lead him to the second piece of the Black Hole Generator. However, Armagaan did not heed Leo's warning that the Cthuga only allow those who are worthy to pass, and they were all subsequently chased away by it. After a narrow escape, the Daagon come to their rescue and apprehend Armagaan. After they return to Hidralla's dwelling, she condemns Armagaan and ridicules the heroes for failing to even stop him, let alone pass the test. As they ask for a second chance, Armagaan laughs, prompting Hiidrala to ask why. He says it is because his reinforcements have arrived. and the then break into the dwelling, having already defeated a majority of Hiidrala's guards. Dregg threatened Hiidrala to hand over the Black Hole Generator piece, or he and his children will feast upon them all. Hiidrala tells him that he will have to get through her first, prompting the turtles to assert the same, to Hiidrala's delight. During the fight, Hiidrala takes out a few Vreen before facing Dregg, who manages to momentarily blind her with his detachable hand and fires a missile at her. At the last second, Leo courageously jumped in front of it and took the missile to protect Hiidrala. Hiidrala then out of anger, released a blood-curdling screech. Seconds later the Cthuga responded to her call and came to her aid. It then devoured Dregg and Armaagon, leaving afterwards. Hiidrala the helped Leo to his and asks if he is okay, to which he say yes and asks her the same. She tells him she has him to thank for her being unharmed. She told the heroes that because they fought to protect the Daagon's kingdom, they have their gratitude and their actions validated their words. In turn, she gives them the piece. She revealed to them that the Cthuga was just a test and that they kept it hidden in the kingdom. She then told then that if they can really destroy the Heart of Darkness, the Daagon honor them. Leo thanks her for that.