What are actor list in house of the future in UML?

I want to know what are the actor list in a house of the future? who will be primary actors, supporting actors and offstage actors? house of the future includes- intelligent refrigerators remote access configurable living smart environments.

Any answers would be really appreciable. Thanks in advance.

Solution

Considering such a home of the future you could think of actors like:

User using the appliances from home
User using the appliances remotely
e.g. fire squad brigade - get connected to smart smoke detection etc.
e.g. online grocery retailer sytem - gets access to fridge's api and can automatically send a courier to the home
e.g. water provider system - gets access to detailed data about water usage, can suggest changes to the plan e.g. based on time of the day etc.
and on and on...

Remember on UML diagram if more users playthe same role you just indicate this as one actor