Active Walk-in

From Pluralpedia, the collaborative plurality dictionary
active walk-in (n.)
Applies toheadmates
CoinerPetrichor Voices

An active walk-in is a headmate who comes from a world other than the shared reality and is able to return to the other world and back, typically at will.

Active walk-ins do not need to constantly move between worlds to use this term. An active walk-in who remains in one world over another for a long time can still be considered an active walk-in.