Why does a Controller inherit from an Actor?

[maikklein]

AController

I am a bit confused why Controllers are based on Actors.

The docs state:

An Actor is any object that can be placed into a level. Actors are a generic Class that supports 3D transformations such as translation, rotation, and scale. Actors can be created (spawned) and destroyed through gameplay code (C++ or Blueprints). In C++, AActor is the base class of all Actors.

I am asking because I need to do something similar. I am currently creating a Spell system which doesn’t need to be placed in the world but it should have the ability to tick.

That is why I inherited from UObject and created the Tick function myself, but I am wondering why a Controller is based on an Actor because I don’t think that a Controller actually needs to be placed in a level.