PegasusBrill, often referred to as 'The Sound Guy,' is the sound editor for Whooves and Assistant. As of episode 8, he provides the voice of Tick Tock. He is the former roommate of BaldDumboRat, the voice of Derpy Hooves.
- He has worked for the Whooves and Assistant team since episode 4.
- He creates all of the sound effects himself. For example, in episode 5, when the Doctor is eating, the sound effect used was from when Brill accidentally recorded himself eating a piece of bread.