Jessica Grey

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Jessica Grey
Jessicas infobox.png
Soul/Trait Human Soul
Grey (Formerly)
Species Human
Gender Female
Status Deceased
Theme Life in Grey
Life In Blue
Voice Actor MEMJ0123

Jessica Grey is one of the antagonists of Season 2, before becoming a main protagonist in Do or Die. She's the director of the Anti-Monsters Department (AMD). She made her first appearance, as a cameo, in Continue, then an official appearance in My Sunshine.


Jessica is a middle-aged woman who wears a short blue dress that ends above her knees. She is shown to be much taller than Frisk, but shorter than Papyrus and Gaster. Her hair is primarily black, with a certain portion being gray. Over the course of the season, it transitions back and forth between gray and blue. Her eyes switch between gray and blue as well.

Appearance Jessica.png

Early Life

Jessica Grey once had a husband named Noah, and a child named Alina. However, Noah died in a car crash. Occupying a high-level position in the AMD and taking care of a child by herself, Jessica was very busy. As a result, she didn't get to spend very much time with Alina.

One fateful day, Jessica made a promise to Alina that she would come to her dance recital. However, when she arrived, she realized that she was too late; The dance recital ended, and her daughter was missing. This led to Jessica losing her soul trait of Integrity, resulting in a Gray soul.


Jessica is initially very reluctant to cooperate with monsters, which is evident from her position as the director of the "Anti-Monsters Department". The reason for this cold behavior seems to be a result of her daughter's disappearance in the past.

Jessica has been displayed to be prone to sudden outbursts and quick to take action without much consideration. This is visible when she lashes out at Asgore after he confirms the death of her daughter. She also accepts the offer made by an anonymous individual, who claims that they can and will commit an act of genocide on the Monsters. This lack of emotional stability resulted in her later rejecting the original agreement, and instead siding with Frisk and the Monsters against Bete Noire.

This unstable nature is also apparent through her losing and gaining her trait multiple times.

Powers and Abilities

  • Gadgets: From various sources such as the AMD, Jessica utilizes several technological gadgets throughout Season 2.
    • AMR: Jessica formerly utilizes the Anti-Magic Ray while taking revenge on the Monsters, and later on Bete's blobs. Her continuous use of this weapon, with its dangerous drawbacks, causes her soul to crack the more and more.
    • Justice Magic Ray: Jessica is shown utilizing this weapon against The Kumuzilla in Game Over Part 2. Like the AMR, this gun utilizes magic from the user's soul to fire it.


Season 1


Jessica only made a short cameo in the after-credits scene. She was seen saying that Humans are superior and that the thought of Humans and Monsters being equal was idiotic.

Season 2

My Sunshine

As the AMD's (Anti Monster Department's) leader, her job is to monitor the monsters, and if they attempt to do bad things, the organization will lend a hand to detain the Monsters and help the Humans as much as they can.

Frisk tries to get Jessica to come to the reunion to sign a peace treaty between Monsters and Humans. At first, she refuses, but when Frisk mentions her family and offers to show her that Monsters are harmless creatures, she reluctantly agrees.

Frisk takes Jessica and Bete to Gaster's laboratory, where Gaster explains his work on the CORE and its purpose. He impresses Jessica that not only will the bills be cheaper, but that if the CORE’s expansion is finished, then nobody will have to pay for electricity anymore.
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Next, Bete, Frisk, and Jessica go to Toriel's new school, showing Jessica how Humans can control their soul powers. This is where Jessica has a meaningful flashback. She then leaves the school crying.

The next day at the HSO HQ, she tells Frisk that she has decided to sign the treaty, as she believes it's time for a change. During the meeting held about whether the monsters would be allowed to stay on the surface, it is revealed that Jessica's daughter was the last human child to be killed by Asgore.

When Jessica learns that Asgore killed her daughter, this worsens the relationship between Monsters and Humans. It then leads to her making a deal with a shadow-like creature to avenge her daughter, by destroying all Monsters.
MySunshine Jessica .png


While Frisk, Sans, and Papyrus are at Mettaton's show, an illusion of a girl is seen on top of a construction crane and crying for help, attracting Papyrus' attention. Meanwhile, Jessica is in a dark alley holding the AMR, which disables a monster's powers, but may also crack the user's soul. Since Papyrus is unaware of each of the crane’s function, the illusion tricks him into pressing a green button, letting go of the heavy concrete beams the crane is holding. Sans uses his telekinetic powers to stop them from falling on the Humans, while Frisk tells everyone to run. Jessica then fires a bolt at Sans, draining his magic and causing him to drop the concrete beams on people in the area.
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Later, Sans and Asriel are looking at camera footage in the AMD building for clues. They watch a camera feed of Frisk opening a shield in front of Bete to protect her from nothing. During all of this, Gaster is reading a story about two siblings who created the barrier. The three of them all find out that Bete is the one behind the show incident, and Sans tells Asriel that they have to warn the others.

At that moment, Bete comes in and reveals her true self. Sans prepares for to teleport himself and Asriel away, but gets shot by Jessica, nullifying his powers again. Bete deceptively casts an illusion on Asriel and prepares to attack him while he's in a trance. However, just before Bete's attack takes his soul, Sans teleports in front of him with the little energy he has, shielding Asriel and taking the hit. His soul is then eaten by Akumu. Asriel starts fighting, but suddenly remembers what Sans said about warning the others. He then escapes, leaving only Jessica and Bete in the room. Bete asks for the vial of HATE that Jessica is holding, but Jessica refuses. She then experiences a horrifying illusion of her daughter, Alina, as Bete enjoys torturing her.

Do or Die

Jessica goes to the prison where Asgore and Papyrus are being held behind bars and asks Undyne to open the cells, but Undyne refuses. Jessica reveals her AMD card, allowing her to see Asgore. Both of them talk about how sorry they were, then Jessica goes to Papyrus' cell and tells him how she is sorry about the role she played in Sans' death. Papyrus forgives her, which allows her to gain her trait of Integrity back. Jessica and the others then go to Gaster's home when Bete's pink blobs are attacking the city. She almost gets blasted by Gaster's red Chroma, but Papyrus summons a Gaster Blaster to shield her from the attack.
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Later in the episode, Jessica, Dr. Alphys, and Gaster come up with a plan to fight Bete and Akumu in The Nullifier Room. Jessica watches with Alphys, but when Gaster nearly loses his life, Alphys goes in to kill Bete with the nullifier.

Alphys, before activating it, tells Jessica to leave with Gaster using a teleporter. They then teleport to Undyne and Papyrus.
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Jessica tells Undyne that Alphys remained behind to kill Bete, and Undyne, being worried about Alphys, rushes to The Nullifier Room as fast as she can. She arrives after Alphys' plan failed and is tricked into shattering Alphys' soul, before powering up to fight Bete.


Part 1

Gaster regains consciousness after his fight with Bete and reacts negatively to Jessica, telling her to keep her hands off him. Later in the episode, Papyrus grants her permission to use Gaster's control panel to alert the Humans of Bete's creatures. Jessica tells them to only leave their houses in the company of a Monster. Frisk also gives Jessica her daughter's clothes (the tutu and the ballet shoes). She then says that Frisk is a "nice and kind" child, but Frisk denies this, showing his personality change.

Part 2

At the beginning of the episode, Jessica speaks with Ronan Cass, a member of the HSO military forces. She is informed that their best wizards are making sure that anything magical can't get in or out. Jessica then says that no one knows how to deal with Bete, and that sending out men to fight may only cause more casualties.

Later in the episode, Gaster becomes suspicious of Jessica and discovers that she has something to do with HATE. Gaster then finds out that Akumu had eaten the HATE vial during the battle between Undyne and Bete, allowing Bete survive the fight.

Gaster then tells Jessica that he doesn't want to hear any more of her excuses or apologies. He just wishes that he had never met her. This causes her hair and eyes turn gray again.
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During the battle between Frisk and Bete, Jessica is left with Undyne to watch her as Toriel, Gaster, and Asgore follow Papyrus.

My Promise

Jessica is seen with Undyne, who is still lying in bed. The two talk, but it's interrupted when Jessica hears a sound at the door. She decides to go check it out, only to find a bunch of blobs, who successfully break into the house.

To defend herself, she picks up the AMR. Undyne joins Jessica as more blobs begin to come in.

While fighting a blob, Jessica fires the AMR in its direction, but it dodges. However, it's now cornered, and Jessica tries to kill it by firing, only for the attack to fail and for her to collapse. After the blob stabs Jessica, the blob is killed by Asgore, who hurled his trident at it.
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A bit later, Jessica is seen unconscious in bed while Toriel tries to heal her.

Game Over

Part 1

She appears when Ronan calls about Rave Rutrow. Being told the situation, she looks around, finding that Toriel offered her clothes in case she needed to go outside. Jessica tells Ronan to bring her a car and her field suit, before hanging up. Jessica then puts on Toriel's clothes and tries to leave the house.

Toriel then notices Jessica, taking her by surprise, and asks her why she is out of bed since she should be resting.
GameOverPt1 Jessica.png

Jessica tells her that her men need her at the center of the city. When Toriel argues that it's too dangerous for Jessica to leave while injured, Papyrus offers to go with her. Gaster, however, refuses to let him go, saying it's too dangerous. This causes a small fight between the two, which Jessica watches in surprise.

After the fight passes, Jessica hears her vehicle arrive and says that it's time to go. Gaster offers to go with her instead of Papyrus and tells Papyrus to protect the lab, which he happily agrees to.

Part 2

Jessica goes on a train with Gaster after finishing a phone call, confirming to the person she's speaking to that Ronan's in charge. She explains to Gaster that they must head to the school to help Undyne keep everyone safe. The train grows silent for a bit, but they then both talk at the same time. Jessica insists for him to go first, to which Gaster replies he wants to talk, but is unable to put his thoughts into words and needs a nap.
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Once she arrives, Rave brings up her past and current failures, with Jessica replying that she doesn't want anyone else to die. He uses the fact that she couldn't protect both her job and daughter against her, which leads her to permit him to rule over the city once the situation is dealt with. She plans to help Ronan evacuate citizens.

As Jessica and Gaster travel to the school, she notes that she can feel the ground moving. Both of them come face-to-face with The Kumuzilla. Jessica shouts to run, and Gaster holds a shield up to protect them from falling debris. As they fight The Kumuzilla, Jessica calls Rave and grants him permission to use whatever he brought to help. Jessica notices Gaster visibly straining, unable to hold the shield for much longer, shortly before he loses all energy and faints. She shouts his name as the rubble begins to fall on them.

When she wakes up, she notices Gaster unconscious and wakes him up, asking if he's injured. He tells her that he isn't injured much, but is stuck. Jessica notices she still has her teleporter and suggests using it. However, she notices Gaster's distress and asks him what's wrong. He responds by saying that it's a teleporter for only one person. He insists that she uses it, to which she refuses. Jessica attempts to lift the rock to free Gaster. He asks why she's even bothering showing kindness to him, commenting on how awful he's been to her. Jessica pulls out her gun and amplifies the magic output in an attempt to destroy the rubble, but her soul cracks before she can use it. She begins throwing up blood, and Gaster instructs her to leave, saying if she doesn't, they'll both die. He pretends to forgive her for everything, to get her to leave, as the place is about to collapse completely. She smiles and asks if she can say one more thing before they part ways.

She then activates the teleporter, forces it into Gaster's hand, and tells him to make Bete suffer. Her eyes and hair have turned fully blue for the last time.

Unable to stop it, he teleports away and Jessica is left alone, crying but still smiling as she looks at her picture with Alina. A rock is seen above her, and as it crashes down, she closes her eyes.
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After dying, she sees Alina and Noah. She appears to be in some afterlife with her deceased family. Alina comments that they missed her and asks if she's done working so they can play together. She touches Alina's face and asks if she can hug her. As they hug, Jessica holds her daughter tight, apologizing. She promises that they will all be together forever, and they fade away into the light.


Jessica makes a minor appearance in the scene with Rave and Gaster. Rave is seen talking to Jessica with a worried face, where Jessica's voice can be heard. Suddenly, the signal is lost after the sound of falling rocks is heard. Soon after that, Rave sees the teleporter. It triggers a flashback of a conversation with her, which shows Jessica giving Rave paperwork to sign. She apologizes about Alina, before saying that Noah would be proud of him. She then leaves the tent and says they will talk later, not knowing that would be the last time she would see him.


While Rave talks to Noah, Jessica can be seen as a silhouette playing with her daughter. However, she does not say anything.


  • Her last name, Grey, might be describing her state as a character in her first appearance: Depressing and tragic.
  • Jessica appears to be slowly dying due to using the AMR multiple times, as shown when her soul partly cracked in Dust and Love Part 1.
    • This is further supported by the fact that she coughs up blood in the latter episode.
    • Also, in My Promise, Toriel states that she doesn't know if she can fully heal her.
  • Jessica's soul keeps cracking due to her constant use of the AMR. As a result of all the damage to her soul, her lifespan has shortened.
  • In Game Over Part 2, Gaster supposedly refuses to actually forgive Jessica for her past transgressions. Jessica seems to know this, as her hair did not immediately change color. However, despite Gaster not forgiving her, she still chooses to sacrifice herself to save him.