Cathraul (the final boss)

Cathraul is the giant demonic octopus who the player's quest is dedicated to stopping. His voice should be a very low, booming, slow voice. Very foreboding and intimidating. You are a giant centuries-old demon who sleeps inside a volcano.

This is one of the shortest reads, as the character only speaks once. It's a wordy and dramatic speech, but the character is otherwise unspoken.