Harvey is one of the biggest giggles I have to myself since there's normally no drawing required for him, just the extra burst at the end of his word balloons. Years ago before I put him in the comic, I had the idea of distilling down to the minimum amount of art that would be required to create a character in the comic and realized an "invisible" man would work since it did in movies since the old Universal Monsters flicks (if not before).
So this is me continuing that giggle to these Ask the Cast updates.