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.

ION is a towering and intimidating person, part of the CANNONBALL crew of shadowrunners

Dossier file of Aengoth Elmlock, the self-flagellating warrior. Some stuff taken from the people on /tg/. Visit 1d4chan for more info.

Dossier File on a young Nord child called Toralf Young-Sword. (Some of the things in this post are taken from Skyrim because I suck at naming stuff.)

Also known as buzzboys and drone troopers

Chuck Norris and the Karate Kommandos was a six episode mini-series from 1986 that I remember with mixed emotions.

Spider City is a Dimension Fatigue Event campaign for 3-5 players of low to moderate level, this submission contains information for the commonly encountered foes in said location.

Captain Houou is a decorated orb craft pilot, formerly a mech jock with extensive combat experience.

Minion/Henchmen variants of Mr Big

7 so-called Knights of the Road, who lie in wait for travellers to rob them.

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.

1-Autonomous Armour

The PCs come face to face with the Big Bad in a fine stately home when he or she casts a spell and the suits of armour lining the walls draw their swords and slowly clank to the attack.

The Big Bad is rarely all alone when He., She or It comes face to face with the PCs for the final showdown. Here are thirty groups of mooks that the PCs may have to face in the final battle.

Appearing to be but a simple decorated greatsword. The steel needing a bit of a polish. But the edge keen and a large emerald set into the cross guard. The blade is actually a wizard caught in a powerful curse, unable to free himself, but capable of thoughtspeech after attuning to a wielder. He may even cast some spells while in combat to help out.

Some People are just born bad

When wars have to be fought, these are the grunts of the army who do the hard fighting and risk their limbs and their lives in the battle line where the real danger is.

When drunks, thugs and general idiots cause trouble in the bars, taverns and dance halls someone needs to chuck them out.

Those magnificent men, in their flying machines...some of them air cadets, others who are long-toothed veterans of war in the air.

Thirty naval officers to sail the seven seas, salty sea dogs all. Some are explorers, some are traders, and others are out on missons of conquest.

A remarkable pilot in the Atlantic Federation Aerospace Force, the Cosmic Era incarnation of Audie Murphy