Twilight Sparkle

Twilight Sparkle (voiced by Tara Strong) is the main protagonist of *both* My Little Pony: Friendship is Magic, and Equestrian Girls franchise. She represents the element of magic. She's the student of Princess Celestia and makes friendship reports to her. Her best friends are Rainbow Dash, Applejack, Rarity, Fluttershy and Pinkie Pie. Her friend and assistant is Spike the dragon, and her big brother is Shining Armor, who is now married to her old foalsitter now older sister-in-law, Princess Cadence. She also helps her friends if something is troubling them, like Princess Celestia's sister Princess Luna. She later became an alicorn, and now, the Princess of Friendship.

Story:
When Twilight's crown got stolen by a thief, Sunset Shimmer, along with a villain named Lord Kyscorn, Twilight had an order by Princess Celestia to travel into the alternate world by the magic portal along with Spike, where she have turned into a.... HUMAN!!!!!! Twilight met the human counterparts of her friends from Equestria, Xiaolin Warriors, Monster Island Buddies, Spider-Man (real named Peter Parker) and his team, Wander and Sylvia, animals of the valley, T.U.F.F. headquarters, Danny Fenton and his gang, Mordecai and Rigby, Jenny Wakeman, and of course her father-figured friend, Grim. When Twilight discovers that Principal Celestia (the human counterpart of Princess Celestia) will award the crown to the Princess of the Fall Formal dance, she decides to run for Princess. But Twilight encounters Kyle, they both hardly knew each other. Also, Kyle became a good liar and trickster; he tried to trick her by winning the crown by the Fall Formal for him. But after fixing the friendship of their new friends, that Sunset Shimmer caused these such things on them once, while the gang decided to help her win the crown at the Fall Formal, Kyle became to grow some feelings towards her. However, Twilight knew that he was just using her to get the crown, causing their heartbroken. But Twilight however saved him when he was captured by Chase Young, the most dangerous and powerful Heylin Warrior that is Xiaolin Monks' feared enemy that wants to rule the world and plunge on it into the 10,000 Years of Darkness, Shadow, Boogeyman (Kyle's former uncle), Gaspar Le' Gecko, Lord Hater, Commander Peepers, The Sinister Six, King Ghidorah, Jack Spicer and Verminous Snaptrap for his betrayal. She, along with her friends then cleaned and fixed the Fall Formal party hall up, until they've been dressed for the party at night. She wins the crown, despite a smear campaign orchestraded by Sunset Shimmer, and receives the crown at the dance.

However, during the big fight against Chase Young, Shadow, Boogeyman, Gaspar, Lord Hater, Peepers, The Sinister Six, King Ghidorah, Jack Spicer and Verminous Snaptrap, Sunset Shimmer takes the crown, betrays Chase Young, while wearing the crown by force and transforms into a rage-filled demon, killing Chase for it. She hypnotizes the students, whom she plans to use as an army to invade Equestria. When she attacks Twilight, Twilight's friends (the Mane 5, Xiaolin monks, Grim, Billy, Mandy, Godzilla, Spidey, Wander, Sylvia, Dudley, Kitty and Skunk) shields her and inadvertently activate the magic of friendship. They defeat Sunset Shimmer, who is rumorseful for her actions.

After the dance, Twilight and Spike return to Equestria. Twilight feels more confident about being a princess than before. She bumps into Flash Sentry, who she encountered several times in the human world, and blushes. Twilight's friends tease her for having a crush, but she denies it. However, in the human world, Kyle didn't care if she's a human or not, he loved her for her. Not just for her beauty, but for her heart.

in team rainboom/team owl's adventures in mlp equestria girls rainbow rocks. She returns to help out the gang defeat the sirens and venom as well. Twilight then had romantic feelings for rainbow. As she did for her. So when venom tried to make twilight his queen. Rainbow kicks him away from twilight.

and when kyle announce he was quitting she wanted to know what was wrong? But when trying to get an answear. Kyle admitted that the sirens are his sisters. She was in shock of this. And thought kyle was using her again. So he left unhappy. Leaving twilight heartbroken to say that to her boyfriend.

but kyle along with team monster went to the rescue. And twilight and kyle both apologized. When after the battle. Twilight and rainbow shared a kiss of two mare friends can share. Twilight can now use the portal to visit any time she wants.

so she decided to stay with the rainbooms as they will need some help on finding the rest of the sheng gong wus from venom and the heylins. And she is team leader of team rainboom.