After the San Francisco 1906 earthquake, Japanese immigrants helped to rebuild the city and the name was changed to San Fransokyo. At an unknown point in the future, San Fransokyo became a high-tech metropolis with a very advanced university for young minds to develop new ideas.
- Big Hero 6
- Aunt Cass
- Tadashi Hamada
- Professor Robert Callaghan / Yokai
- Alistair Krei
- Professor Granville
- Richardson Mole
- Abigail Callaghan
- Bot Fight Ringleader
- Celine Simard
- Frederick Frederickson III / Boss Awesome
- Olivia Mole
- Lenore Shimamoto
- Prior to being given an official reality number, this universe was known as Earth-TRN441 as part of our Temporary Reality Numbers classification system.
- The history about the reconstruction of San Francisco into San Fransokyo was not given in the film.
- In March 2016, it was announced that a 2D animated series titled Big Hero 6: The Series was under development, planned for a 2017 release on Disney XD.
- The series originally aired on Disney XD with the episode "Baymax Returns", before it moved to the Disney Channel for the remainder of the series.
- In December 2020, it was announced that a spin-off series titled Baymax! was under development, planned for a 2022 release on Disney+.
- 25 characters that originate from Earth-14123
- 1 teams that originate from Earth-14123
- 3 items that originate from Earth-14123
- 4 appearance(s) of Earth-14123
- 84 image(s) of Earth-14123