Robert Mckee mentions in his book Story, that a character must “bring to the story [a] combination of qualities that allows an audience to believe that the character could and would do what he does”. His chapter on character functions refers to several attributes that make up the structure of a character, but I’m going to narrow it down a bit for this specific rant. A lot of the time, not always (the Joker?), but a lot of the time a good backstory can help ground an otherwise out-of-orbit villainous mind:
Now, It doesn’t have to be a blatantly obvious halt where they endlessly monologue:
Or sing about it in a wonderfully written piece of ART:
But it certainly adds depth and can even garner sympathy for the villains with the worst atrocities under their belts. (*Cough Cough* Loki)
Simple, really The more we get to know a character, the more
relatable they become. For the destined-for-redemption type villain, it
is almost essential that we learn as much as we can about why that
character would make the choices that led them to villainy.