After listening to How to Defeat a Demon King in 10 Easy Steps (a total riff on Zelda) I was inspired by the highly colorful 'demon generals' employed by the Demon King and thus, this list was created. All of these individuals should be workable for powerful sub-bosses or even full on boss fights themselves.

Minion/Henchmen variants of Mr Big

What is a Fisto? A Fisto is a person who has had one of their arms replaced or modified with cybernetics to be really really good at punching.

A generic group of minions for use in a modern setting, action theatre oriented.

In the Time of Dying Stars, countless children warped by the black rain were slain after birth as monsters and hellspawn. A special one lived, to her dismay.