Yeah, that's a good guideline. Characters need a personality above everything else, and comic relief is not a personality. Trying to be funny is a personality trait, so is being witty, so is being hilariously awkward, and so on. Humor comes from the interaction between personalities, not because some character is designated as the funny one.El Presidente wrote:Usually I hate them if the only purpose they have is comic relief.
...though it seems certain personalities/interactions are more geared towards producing humor.