Dearest Appletwig, yes it is absolutely possible to have a famous person as a Soul mate or Flame. It sounds to me like this British Actor you speak of is a Soul Mate of yours, nothing to be embarrassed about dear, we are all Souls.
My Flame was a famous musician and please believe me, I thought I was going absolutely crazy when I first started to experience all the visions, the dreams, the signs and etc. I did not want to deal with it. I thought it much too impossible but it was not going away so I decided to explore it further. To cut my long journey short, the visions and dreams I would have came to pass and I had one vision where I would actually see my Flame in person. I thought this to be absolutely ludicrous because he was much too famous for some one like me to reach him but it happened. Universe made a way for us to see each other and look into each other's eyes for just a moment and although neither of us said a word, I knew in that moment for sure...I just knew. It was beautiful and I will never ever forget it.
My Flame is now on the Other Side but the bond remains. The experiences with my Flame started before I ever got the chance to see him in person and when I finally did see him, everything came together without a single word.
I hope that some how, sharing this piece of my journey with you will help you to gain more confidence in your own experience. Soul Connections are nothing to be embarrassed about no matter who the person is. You do not have to ever meet a person in order for them to be truly Connected to you but I do think meeting them or seeing them in person would definitely help.
In your heart, you know the difference between infatuation/obsession and a true Soul Connection.
Love and Peace AppleTwig!
~Jennifer