Yeah I actually thought of that one before, Jitterskull's and Choke's father. I thought of the name Hammerhead. Well, anyways...
Two Ghoul ideas here --
ServantServant is basically a floating alarm. He's full support.
His primary weapon could be a loud or bright (or both)... well, alarm.
Alternatively his primary could be a projectile that, when hitting a target, reveals it completely for all Ghouls. Like a monster appears in Skulltag's Light Amplification Goggles.
His secondary could be a healing aura. He holds steady and starts whispering gibberish (or yelling it) and any Ghoul near him gets a passive healing. Maybe 5 health every second? Again, alternatively his secondary could be an ethereal smoke machine, enjoy shooting Ghouls with that smoke in your eyes.
Appearance: He's a floating blue mouth. And he has four to six eyes all pointing a different direction. He has small, organic tubes aiming down to allow him to float.
History: Keeping it short to avoid a longer post - Yurei recruited him, she did not summon him.
Stats: He has 150 health, floats as fast as a non-sprinting Sjas if he himself is sprinting, and causes faint... well, floating sounds. Like a DOOM 3 Cacodemon. And no, he has no damage-inflicting weapons.
SalvageSalvage was a ghost who decided to haunt a pile of junk, and turn it into a 'Mech. He has four large shovels for legs, his left arm is a shovel-arm (you know, like on construction vehicles. Backhoe or whatever) and his right is a wrecking ball and chain. His primary is simple slashes with his left arm, committing perhaps 20 damage? Maybe more? Its a little faster than Creeper's primary. For his secondary, he cannot move. He flings his wrecking ball forward (it goes quite far), then pulls it back. If he hits you directly, guaranteed death. Otherwise very low damage. Like 10, but in a large radius. When pulling it back, it can squash those in front of it, if possible. As he is a walking junk machine, repairs are very simple, 10 health recharge if holding still. He has 120 health maximum. His main body is a pile of random junk. A computer with a bunch of numbers on-screen, a roadsign (gray and says "Buff you!" on it, maybe

), a tall neck made of black coils, and a large car battery and exposed fan on the back of the torso.
Salvage moves just as fast as The Creeper.
I may bring up pictures soon of these guys. Hope I wasn't late.
- Your friendly neighborhood Court Jester.