Do you practice each of the voices you’re going to do in each episode of Critical Role beforehand, or do you just make it up on the spot?

What about sound effects? That’s gotta be prepped, right? Or can you just do a graboid burrowing through earth on command? NPC voices I’ll practice in advance (if I think they might encounter them), though many end up being created on the spot. For Noises, I just spent a lot of time growing up mimicking sounds for fun. I was a strange kid.

— Matthew Mercer (@matthewmercer) July 17, 2018