If ever a character was pitiable and heroic at the same time! At first he’s a man in service looking to better his position. It seems like he’s good at it, too, but his personality is always awkward at putting himself forward.
Isn’t Molesley a Six? Need we delve further, lol?
He’s a worrier. He’s a forelock-puller (if he’d lived in an earlier era). He’s never going to be head butler. It isn’t until Baxter joins the household that we see the depth of his character. Before that, he seems more like a comedic foil for the downstairs plots. With Baxter, though, he shows the black-and-white moral code that Sixes do so well. He likes her romantically, but he also just stands by what is right, and his influence helps Baxter take back her life.
Can we say that The Fool is often a Six? Isn’t that interesting! Character tropes that may match up with the Enneagram! Molesley is most definitely a Fool archetype. And then, like every great Fool, he tells the truth when no one else will take the risk. After all, the Fool is one of the most heroic types in fiction. No one else is willing to annoy a king day in and out.