The thing about Mortal Kombat is that the kind of martial artists who can pull off the crazy moves you need onscreen are probably not the best actors. So the producers decided to make a very, very smart move and hire some voice talent to dub a few characters. That voice talent? The legendary Frank Welker. Most famous for the voice of Megatron, Welker is one of the business's few real golden throats, capable of giving speech to just about anything. In the movie, he does Reptile, Shang Tsung and even the growls and groans of Goro.