Lord Dominator

She made her full appearance in the Season 2 premiere, The Greater Hater. Lord Dominator uses her army of robotic minions to deal with Wander, Sylvia, Lord Hater, and Commander Peepers when they all infiltrate her ship. Wander persistently tries to bestow Lord Dominator with a picnic basket as an act of generosity, but Dominator does not bother paying attention to him, until Wander starts getting fed up and then plays his signature banjo. Only then does Dominator attack him by encasing him in lava. Once Lord Hater finds out about her defeating Wander, he gets furious and attacks her, but Lord Dominator retaliates by stopping Hater in his tracks with her magma gloves and slapping Peepers aside. Wander, Sylvia, Lord Hater, and Peepers all escape the ship and all were shocked over how powerful "he" is, as they did not know who Lord Dominator truly was at the time. Lord Dominator then morphs back into her true form out of excitement after her encounter with the gang and excitedly goes over her favorite parts of it. She believes that she will have "fun" with this galaxy and its "dorks", and she reverts back to her She would then appear again in The Battle Royale. When Wander finds out about her true identity, he is determined to play matchmaker to set Lord Dominator up with Lord Hater, despite the sheer resentment Hater has towards Dominator, because he believes they have enough in common to hit it off and that they'll stop being evil if they do. She finds out about the ring and then assumes her intimidating form to storm the warzone between all the other villains of the show by one-upping them in one single blow in order to get a ring, which all the other villains had thought it was a powerful source for conquering the universe. Lord Hater then battles Lord Dominator for the ring after all the other villains declare Dominator the best villain. Eventually, Hater manages to get the ring for himself by knocking Dominator's helmet off, revealing her true identity to everyone else. However, Hater has developed a new crush after seeing her, in which Lord Dominator takes advantage of this distraction by sending him off the cliff and then taking the ring for herself.

Since then, Lord Hater would then try several attempts to impress Dominator, ranging from an awesome new ride (The New Toy) to a propaganda film (The Cartoon), while Peepers would come up with plans to defeat Dominator, such as using the unstable isotope, Frostonium.

In The Bot, it is established that Lord Dominator needs an important resource (for her ship, bots, and power suit) called "Volcanium X". She is shown to be outright abusive and cruel to her minions if they fail her, as shown with Bot 42. She takes a preference to Bot 13, since it actually did marvelously at locating planets with Volcanium X. Dominator orders him to retrieve that resource. However, Bot 13 forms a newfound friendship with Wander and directly disobeys her by deleting his data. This infuriates Dominator, who then kicks Bot 13 out of her ship, resulting in him disintegrating to his death. She appears again in The Rival, where she is visited by Emperor Awesome, who attempted to impress her with his muscles instead of a super weapon that he promised her. It turns out that she never saw him as a potential ally, and only agreed to hear him out because she was bored and was hoping that whatever weapon he would present would at least be entertaining. In retaliation for offending her, Lord Dominator steadily encases him in lava by pretending to be impressed with him, and then bluntly lets Awesome down for trying to hit on her, proclaiming that even Lord Hater isn't as delusional as he is. She destroys Awesome's limo at the end of the episode and later imprisons him, as shown in My Fair Hatey. Her next major role is in My Fair Hatey, where she "invites" Lord Hater to her ship. Wander tags along with Hater to help him impress Dominator through the musical number "You're the Greatest", but it turns out that it was her armor sitting on her throne while the real Dominator was in the shower. Upon returning, it was revealed that the real reason Dominator invited Hater to her ship is that he is the only villain who hasn't surrendered to her and wants him to admit that she is the greatest in the galaxy. It is shown that Dominator had imprisoned all the other villains of the show, including Dr. Screwball Jones, Little Bits, and Emperor Awesome. Dominator then spells it out to both Wander and Hater that she is not interested in their friendship and romantic advances respectively, while singing her Villain Song "I'm the Bad Guy". She finally breaks Hater through this process, as well as makes Wander see how terrible his matchmaking plans were, and then throws both him and Hater into a prison cell. During that time, Sylvia and Commander Peepers attempted to destroy her ship's core with the Frostonium, which leaves Dominator desperate to fix her freezing ship once they successfully do so. Sylvia and Peepers manage to escape her ship along with Wander and Hater when they break out of their prison. Unfortunately, this ends up not only failing to destroy her ship, but also giving Lord Dominator ice powers, and she ends the episode going after them, telling them that the show is over. She reappears in The Night Out. Dominator is completely bored inside her ship, as she has to wait for it to finish installing updates for her new ice powers, which would take a very long time, much to her dismay. After failing to make her Dominator Bots laugh at her jokes, Dominator decides to leave her ship to spend a night out on the planet below. She puts on civilian clothes and hides her signature eye makeup behind shades to prevent others from recognizing who she is. She would stir up some trouble with the planet's local karaoke bar and it's owner, fighting alongside Sylvia (who she spotted singing when she entered and decided to hang around for) after inciting a brawl, and is surprised at first to have Sylvia as her new friend. Dominator opted to spend the rest of the night having fun on the town with her. Dominator seemed to be very happy having a real friend for possibly the first time in her life, but ends up pushing her friendship away because she loves to cause pain and destruction above all else, and ultimately rejects Sylvia for refusing to follow her every command when she started behaving evilly. Dominator believed it fit to leave Sylvia for dead when fighting a giant pit monster just because the latter refused to go along with everything she wanted. This action cemented the end of their friendship. The episode ends with her back to her normal lifestyle, but equally as bored as before while waiting for updates.