- Madoka Kaname
- Homura Akemi
- Mami Tomoe (Assumed to be the de facto leader)
- Sayaka Miki
- Kyoko Sakura
- Nagisa Momoe (In Rebellion)
In Episode 10, the group is seen in Timeline 3 and, excluding Madoka, in Timeline 6. In Timeline 3, things mostly proceed similarly to the initial Timeline. Mami lives past Charlotte and Madoka has already contracted with Kyubey. Additionally, Sayaka contracts in this timeline and Kyoko arrives from Kazamino City and joins up with the group.
When Sayaka becomes a Witch (most likely because of Hitomi and Kyousuke), the (now) Quartet defeats her. After the battle, Mami snaps, tying up Homura and killing Kyoko. Mami decided that the only way out for them was death. Mami levels her gun to Homura and nearly killing her before Madoka kills Mami.
In Wraith Arc, the group is mostly the same as in Rebellion but does not include Madoka. The group becomes a trio when Sayaka begins to reject Despair Cubes (similar to how she does in the anime). Her soul gem reaches its limit and she meets Ultimate Madoka before leaving the group. The group's story ends with the beginning of Rebellion.
In Rebellion, the group is seen after Homura, Mami and Kyoko are dragged into the barrier of Homulilly. Eventually Ultimate Madoka, Nagisa and Sayaka all arrive and complete the Quintet (although unwillingly).