We frequently see “negative” ghosts: People who foreshadow a MC’s future if they do not change.
I’m not sure this is under the same kind of umbrella, but the Gattaca Director is basically just a mirror the MC. Not who the character will be if they don’t change, but who they actually are.
Editing to add that the above is not correct: he’s more like the mirror of the Protagonist. Whoops.