Brianne

Brianne is a Witch appearing from Puella Magi Madoka Magica: Journey Through The Decade, along with the tetralogy movies. She first appears in the [http://anime-fanon.wikia.com/wiki/Magical_Molly! Japanese version of Magical Molly.]

Magical Molly!
The witch Appears in the 10th Episode of the re-dub. She was chased by Homura. however Homura ended up in New York in the United States, where 4Kids Entertainment's headquarters are located. Here, an unnamed male 4Kids employee was about to license the children's anime Rocket Monsters for dubbing and distribution in America. However, Homura knocks over the employee's cup of hot coffee, causing it to spill it all over his laptop. His computer malfunctions, and 4Kids ends up licensing Puella Magi Madoka Magica instead and rechristens it Magical Molly!. Despite this, the effects of this incident do not affect Homura and her universe, and she proceeds with the events of the main Madoka Magica series.

Puella Magi Madoka Magica: Journey Through The Decade
The witch made her appearance of the series (If is unknown if she was the same witch from the Japanese version or Magical Molly! or it's an alternate universe counterpart), as a key character of the series. She was firstly encountered by Shirakami, however she refuses to destroy that witch, because she found that witch useful to travel to the other universes.