Sounds Like Ashcraft / Character
It’s really all about the ears. Not the size, shape or ability to wiggle them, but about them being able to detect tone, register, inflection and cadence that differs from your own.
Sure, you have to reproduce the difference, but first you have to hear it. And you have to have an ear for that. Two is even better.
For example, every voice you hear here is mine:
Same here: