Viva my sister! Since she's done with her anthology I hope we'll get to hang out more.
- - interdimensionalPortaller, in her review of Violet and the Horrible Fanfic Writer
interdimensionalPortaller is a reviewer of MarissaTheWriter fan stories. While she doesn't write trollfics herself, she has inspired both ASBusinessMagnet's version of MarissaTheWriter and WheatleysGurl to include her as the principal of Portal High School.
She is based on Ms. Johnson-Rattmann "interdimensionalPortaller", an alternate universe version of Chell first featured in the ASBusinessMagnet story Portal 2: The Stupidest Sequel of All Time. Originally a test subject in Aperture Science, she proceeds to traverse universes, even going as far as crossing our real world. During the traversals, a romance also develops between her and the universe's version of Doug Rattmann, and together they have a daughter named Gladys Rattmann.
She becomes the principal of Portal High School after Principal Business Man. As Skepness Man notes, her primary goal is to attempt and restore Portal High School the way it was before Principal Business Man came. She, however, neglects defending Portal High School from GLaDOS, leading to her being killed and Gabe Jonson, who has renamed himself to Cave, founding Portal Labs.
WheatleysGurl is unaware of interdimensionalPortaller's gender, and hence proceeds to call her "he" on several occasions. In the story, she is involved in getting students to participate in tests.
Interestingly enough, ASBusinessMagnet's version of MarissaTheWriter and interdimensionalPortaller, on separate occasions, refer to each other as sisters. This is likely based on Marrissa Roberts and Chell being sisters in the ITS MY LIFE! canon. The further implications of this sisterhood are unknown.
- The Chronicles of DA SUs (First appearance)
- OMG IMMA IN LOFE WIDDEN ALEEYEN!
- Enchiridion Marrissa
- Dick Stiller and Roxa Lavigne's Time Travellegiance