Head - SKUM magnetic figure
Chest - Overkill
Upper Arms - Ace V1
Lower Arms - B.A.T. V1
Right Hand - Chap Mei weapon
Waist - Flak Viper
Legs - Zangief

Here is an update of Skeletron from the Action Force figures. He was never in the comics, but go read them at BLOODFORTHEBARON.COM anyway.

I wasn't even going to make this character when I started on my Red Shadow customs, but I then noticed the head in my parts box and the rest of the figure just came together from there.