Twilight Sparkle is the central main character of My Little Pony: Friendship is Magic. She is a female unicorn pony who transforms into an Alicorn and becomes a princess in Magical Mystery Cure. She is also the daughter of Twilight Velvet and Night Light, the younger sister of Shining Armor, sister-in-law to Princess Cadance, and paternal aunt to Flurry Heart.
At the beginning of the series, she and Spike, her best friend and assistant, move from Canterlot to Golden Oak Library in Ponyville to study the magic of friendship, and in Twilight's Kingdom - Part 2, she gains her own castle—the Castle of Friendship—and gains the title "Princess of Friendship". Twilight Sparkle represents the element of magic.
Before becoming a princess, she regularly sends friendship reports to Princess Celestia. In Owl's Well That Ends Well, Twilight adopts a pet owl named Owlowiscious. As of The Last Problem, she is the ruler of Equestria.
Twilight's human counterpart, Sci-Twi, briefly serves as an antagonist in My Little Pony Equestria Girls: Friendship Games.
Twilight is a Unicorn (later Alicorn) with light purple fur and an navy blue-colored mane and tail, stylized with rim cuts, and also has two lighter-purple and pink stripes running down both. She also has purple irises and prominent eyelashes, and also, occasionally, thicker eyebrows. She has a moderately-sized horn, which grew in width when she ascended to an Alicorn. Upon her ascension into an Alicorn, Twilight gained wings on her back. In the final episode of the series, Twilight becomes much taller than her friends, excluding a now-adult Spike, who is also now taller than the rest of the group. She wears the fused princess crowns into a crown of her own, wears a necklace and high-heel golden shoes, and has become the same height/size and form of Celestia and Luna. Her mane and tail now have also become longer, as well as moving exactly like the former rulers'.
Twilight is by default a kind and sweet girl but is very strict and orderly. She holds a very high sense of responsibility (almost bordering on OCD) and values hard work and education. She is also extremely organized, having Spike look over her daily checklists three times over. During her childhood and adolescence living in Canterlot, Twilight started as a bit of a loner, valuing schoolwork and education over friendship and social participation, which led to many disappointments from her acquaintances (save for Spike) when they attempted to invite her to join social gatherings and parties, or generally to have fun. After being sent to Ponyville by Celestia on an assignment of overseeing the upcoming Summer Sun Celebration.
Like Pinkie Pie, she's also known to be optimistic, always having a positive and cheerful attitude when it comes to situations and having fun.
Sociability and friendship
Twilight is first introduced in the series as being social. She politely doesn't want an invitation to Moon Dancer's get-together and later states that she and Spike don't have time for that sort of thing. When Princess Celestia tells to oversee the arrangements of the Summer Sun Celebration in Ponyville and to try and make friends, Twilight is indifferent to the latter request. Throughout the series premiere, however, Twilight comes to accept her new friendships and expresses a desire to stay with her new friends in Ponyville.
In Amending Fences, Twilight returns to Canterlot in an attempt to apologize to her former friends for her past actions. She succeeds with Twinkleshine, Lemon Hearts, and Minuette, but Moon Dancer coldly rebuffs the four mares. Minuette and Twilight compare Moon Dancer's behavior to the way Twilight used to act. Twilight manages to get Moon Dancer to open up and she forgives her for her rejection.
Love of books and knowledge
In Friendship is Magic, part 1, Twinkleshine says Twilight is more interested in books than friends. Even after Twilight becomes good friends with the rest of the main characters, she continues to read and consult books. For example, she confidently joins a marathon after reading several books about running in Fall Weather Friends. She is also very knowledgeable about Equestria's history, as seen in such episodes as Luna Eclipsed and Testing Testing 1, 2, 3.
Twilight tries to be rational in unfamiliar situations. During the investigation in MMMystery on the Friendship Express, Twilight tells Pinkie to stop making wild accusations, and they work together to find clues and solve the mystery. However, Twilight can lose her cool under stress. In Swarm of the Century, she hysterically suggests building a replica of Ponyville in less than a minute before Princess Celestia can see the damage done by the parasite infestation. In Lesson Zero, Twilight goes crazy in her attempt to write to Celestia about a friendship problem, to the point of deciding to create a problem herself. In The Crystal Empire - Part 1, she shows a desperate desire to pass a test that Celestia gives her.
Twilight tends to be skeptical of unproven claims, such as her friends' belief that Zecora is an evil enchantress in Bridle Gossip, and Pinkie's "Pinkie Sense" in Feeling Pinkie Keen.
In Party Pooped, Twilight displays an irrational fear of quesadillas.
In My Little Pony The Movie, Twilight believes that Beyond Equestria can never have friendship problems that can be solved since a con artist cat tried to sell them and some parrot pirates nearly ratted them out. In Seaquestria, after Queen Novo refuses to give them the transformation pearl, Twilight secretly lets her friends unknowingly act friendly to Princess Skystar and Queen Novo while she tries to steal the pearl. Her mistake got them banished from Seaquestria and Pinkie and the others chastises Twilight for trying to steal the seaponies' pearl, and Twilight chastises her friends by pointing out that they are no better than her and said that using their regular methods outside of Equestria won't work, as Twilight realized what she just said and regrets it and tries to take it back but Pinkie, who was heartbroken by Twilight's words, walks off and that caused her friends to wrongly separate from her even when she felt sorry for what she just said (after Twilight accidentally yells that she would've been better without friends like them), but they should never have done that because it made Twilight finally getting captured by Tempest Shadow. However after her friends realize their terrible mistake, they return to save her, she apologizes to them and the others apologized too for their foolishness when they should've focused their grudge on the Storm King. Then they all fight against him by trying to get the staff and with Tempest's help they defeated him and Twilight made friends with Tempest and possibly befriends everyone that she never made friends with.
- Tara Strong - English
Main article: Twilight Sparkle/Gallery