Do you dream of people within people? and if so what does this mean?

I’m having a lot of dreams recently where i am dreaming about a partiular person but they look like a different person. Both characters/ people are well known to me.

Why would you dream about someone being a certain person but them looking like someone else?

As i say this is happeneing a lot with various members of my family , friends, ex-partners, famous people, and they are all mixed up… thinking about it though it seems to happen particularly with blokes.