1. A Completely Unremarkable, Average Person: Novels often focus on characters with unique qualities, flaws, or goals. A person living an entirely ordinary life, without any particular quirks or conflicts, would be difficult to build a narrative around.
2. A Perfectly Ethical, Unwavering Moral Compass: Real people are complex, with shades of grey in their morality. A character who is always good, always makes the right choice, and never experiences temptation or doubt might seem unrealistic and uninteresting.
3. A Character With No Internal Conflict: Novels often explore the internal struggles of their characters. Someone without any inner conflict, desires, or fears would likely have a very static and boring journey.
4. A Character With No Impact on the Plot: Every character in a novel should contribute to the story in some way. A character whose actions or presence have no consequence on the narrative would be superfluous and ultimately pointless.
5. A Character That Exists Solely for Exposition: While some characters might provide information or backstory, they should also have their own motivations and agency. A character whose only function is to deliver exposition would feel artificial and unnatural.
Ultimately, the answer is subjective and depends on the specific novel and the author's intentions. However, the characters listed above are all less likely to be found in a novel than those with more compelling and relatable qualities.