It has been discussed several times on the forum but it is very possible that your twin flame can be a celebrity or a famous individual. Not to mention they are human too :) Some people argue it is impossible because they believe these kind of relationships can only happen when the two people physically meet, but I think that the circumstances are different for everyone, and two flame meetings are often random anyway. But of course you are inclined to believe what you want to.
Although you feel that this person may be spiritually involved with you, you still question it, which is insanely human. We've been conditioned to use what we call logic and ignore what our heart says and use our brain, which is useful in mundane day to day situations but isn't as helpful with spirituality.

Follow what your heart tells you. If you truly feel it with all your being, you may as well be right. Only you can tell, and since we can't ask the actor, its up to you.