Sure, but a trained human would probably pick up that something is not quite right, especially if family situation has been revealed earlier.

My neighbor has an identical twin and one day his twin came visiting, but I had no idea he was coming. He was standing in front of our intercom that’s been broken for years looking bewildered when I got home from work, and since I’d heard about my neighbor’s identical twin before it didn’t take me long to piece together what was going on, even though I’d never met this guy before and I had no idea he was going to be there.