, followed by
or
.
Ridley has already been explained, he's a murderous psychopath who enjoys the pain he causes.
As for the other two, Dark Samus' actions are completely guided by a desire to spread Phazon throughout the galaxy which would make her actions more akin to a force of nature. However, MP3 does also imply she is intelligent to at least some extent as she's able to target easy allies to manipulate and orders for them to weaponize Phaaaze and the Leviathans to speed up the corruption of the galaxy. So it comes down to whether you think her plans are her own, or just the influence Phazon exerts. As for Ganondorf, while he's given a sympathetic motivation in WW as well as some restraint in the same game, he has also shown a ruthlessness to his plans to conquer Hyrule that is unmatched by most. He's a tyrant who desires to gain and expand his power, and whether he has to steal, curse, starve, manipulate, or even murder to get what he wants, he'll gladly do it if it gets his way.
Honorable mention to
for also being tyrannical and attempting the destruction of an entire island full of innocent Kongs and animals.