Is she "pointed"? Is she slim? Is she active? Is she extremely vocal?
Most Siamese crosses are either black (if there's no Siamese on one side) or "pointed" (if there's Siamese on both sides), usually with tabby or tortie points.
But the voice seems to be dominant, and it's absolutely unmistakeable.
Here's a pic:
He's pretty vocal... always squeeks when he wants a chin-rub.
Say WHAT? Raggies can be quite insistent, just not as shrieking as a meezer. We’ve got a ragdoll mix, little cobby foofy thing, and she’s quite talky. Meows constantly when she wants attention, but it’s softer than the Siamese demand-meow.
She can’t possibly be full blooded, as she came to her previous owner via a shelter and she’s rather a small kitty compared to breed standards, but she’s got the markings and the actual ragdoll trait.