|Quirk||Replaces I, A and E with 1, 4 and 3 (In that order) also in all Caps|
|Age||13 (6 solar sweeps)|
Terezi is alternatingly civil, flirty, manipulative, derisive and outright sociopathic in her interactions. She is almost always grinning and in many panels it appears as though she is cackling madly. From her conversations with the kids, Terezi's attitude differs depending on who she is talking to: she acts helpful towards Rose, dubs them 'hatefriends' and tells her about Sburb. This approach may be a part of her trolling of John by pretending to be helpful towards him (through insulting him a lot in the process and using a kind of angry politeness) and giving him advice that leads to his death in the alternate timeline. After John avoids his death, Terezi seems to have since shown remorse for her actions and claimed she felt awful for 'killing' him; even helping him through the second gate into the Land of Light and Rain to earn his trust. Her trolling of Dave has been bizarre but effective, causing him to completely lose his cool. She often takes images of Earth pop-culture characters she thinks are similar to Dave and (crudely but awesomely) draws over the picture, claiming to make it look even more like him. It is worthy to note she may have had an interest in Karkat Vantas. During one with Terezi, John jokingly said that Karkat was "basically in love with you," and she reacted with surprise, asking him if Karkat told him that in confidence and even asking him to copy/paste the exact words, a road which John refused to go down. It has since been shown that they were most likely Matesprits.
Like the other trolls, Terezi is able to access the kids' adventures using Trollian, but Terezi stays linear rather than skipping around, because Weird Time Shit weird time stuff gives her a headache, which may mean she is a more efficient troll than the others. Her overall tone of speech is reminiscent of Jade's speaking patterns.
She takes interest in law and justice, has studied Alternian law thoroughly, and holds a particular fascination for , although that might not be why she caused John's death. The incident might have simply been a vain effort from her point of view, because in a conversation with Davesprite, she states that she knew John wouldn't die, as she could see him alive in the future from her timeline application in Trollian, and given that she felt guilty about the way John trusted her trolling, this is most likely the case. She also has more lighthearted interests like dragons, or collecting plushies and scales to put on her walls. She has a habit of using chalks to draw on walls for use in her live-action roleplays, and later also with the exiled Black Queen. Her favorite color appears to be red, saying that it is and the , probably contributing to her attraction to Karkat and to Dave.
Terezi is very interested in other people's blood color, but that may be more out of psychotic curiosity than hierarchy. Terezi's own blood is in the
tail teal end of blue, keeping her out of the aristocracy's conspiracy games until she's over her head in Sgrubbenings.
She appears to have a Matespritship relation with Karkat, as possibly indicated by conversation, although it could also be read as her catching a mere embarrassing moment such as tears. She later tells Dave that her relationship with Karkat is sort of complicated. She is later seen embracing Karkat on the roof of the lab after he sees her murder Vriska. 1 year into the trip to the new session on the meteor, Karkat implies in a conversation with his future self that he and Terezi are no longer getting along, which his future self blames on Karkat's attempts to create a Kismesitude with Terezi as well as a Matespritship. It is possible, however, that Karkat was simply overestimating his own importance to Terezi in the first place. He does overreact fairly often, after all. In A6I3, a conversation between Karkat and Terezi (in which Karkat is trying to comfort her, and ends up calling her "already beautiful") suggests that they may have had a Matespritship, which Karkat "fucked up". Currently, she is in some sort of relationship with Dave Strider, as suggested in the previous conversation mentioned. ("DID DAVE BREAK UP WITH YOU? HE BROKE UP WITH YOU, DIDN'T HE?!") In the third part of the Act 6 Intermission 3 game, when the notoriously sexually aggressive Damara attempts to approach Karkat as he sleeps, Terezi threatens her wanting to protect Karkat.
Terezi once told Vriska she is grateful for being blind, because it allowed her to bond with her Lusus as well as allowing her to, as she puts it, "" According to a with Karkat, deep down she actually does not want to be able to see, and it is the reason why her dream self is blind as well, spiting Vriska being just a bonus. After Sgrub, Vriska tries to become Terezi's kismesis. It seems to work, and even Dave, a human, thought they were kismeses. However, instead of pursuing this relationship, she had to kill Vriska to prevent her from leading Bec Noir to the lab.
Nepeta and Terezi are good friends because of their constant online role-playing together. Terezi was friends with Aradia while they were Flarping, but they seem to be more distant after she died. She was also on good terms with Tavros.
Terezi was friends with Sollux, who originally chose her to lead the red team. Terezi often relies on Sollux's help for computer related matters such as when she asked him to help her contact and when she asked him trace the money transfer from Dave. Terezi has stated that she thinks Sollux is cool (sometimes) and that he reminds her of Dave. After Sollux went blind he asked Terezi if she had any tips for him.
Terezi's interactions with John Egbert haven't been very constructive, as all she does is laugh, insult him, and threaten to kill him if they should ever meet, prompting John to consider changing his chumhandle. After his arrival in the Land of Wind and Shade, John was tricked by Terezi into taking a shortcut directly to the seventh gate causing his death (in one timeline) at the hands of the Slumbering One - this in turn caused the death of Jade Harley in this timeline, as John was unable to transport her into the Medium in time to save her home from the meteor bearing down on it. As this timeline branched off from the main one, the trolls were unable to see it or know that it had occurred until Davesprite informed Terezi of it.
Afterward, she helps Dave make money in the LOHAC stock exchange so he'll send it Weird Time Shitf. It's
implied by Karkat that she's flirting with him. After the Doomed Dave is killed by Bec Noir , she runs from the room in tears. This suggests that she was very close to Dave. It is revealed in the second part of the Act 6 Intermission 3 game that Terezi and Dave are in some sort of relationship.
Some fans have suggested that the 5x Combo Showdown flash with the murderous Gamzee shows Terezi having feelings of kismessitude towards the purple blood. While hunting Vriska after finding Tavros's corpse, Terezi comes across some of Gamzee's blood and adds "poor sweet Gamzee" to Vriska's list of murder charges. She also seems amused by Gamzee's honking and authentically wants to help him. However, the third part of the A6I3 game confirms that since then, Terezi and Gamzee have become kismeses.
Interestingly, both the people she has flushed relationships with are people who have strong connections to red, more specifically bright red. Karkat is the only troll to have red blood, and in addition, his God Tier is one of the two that has a red outfit. Dave also possesses candy red blood and a red God Tier outfit, as well as typing in red.
Terezi was not raised by her Lusus Naturae, as it had not yet hatched. When it hatched, the Doomsday Scale would tip and bring on the end of their world (it later turned out to be a countdown to the end rather than the cause).
The doomsday button bears a spirograph, as featured in Sburb.
Her custodian is a dragon—fitting since dragons have scales. After the start of the game, Terezi hatched the egg as the world was ending anyway. Unfortunately, the lusus was killed by a meteor immediately after hatching. Terezi eventually prototyped her sprite with the corpse.
After Terezi lost her sight, it was her Lusus, through communication during her sleep during the daytime, that helped teach her the skills to function without vision, by smelling and tasting her surroundings, much like the dragon. The species apparently is born without sight and must learn to function that way themselves.
Her Lusus also appears to have the ability to control Terezi in her sleep, as shown in Template:HS.