>>8782797So you had
Commander King, the leader, he wanted to be king of the world and he loved his crown a lot.
Major Brain, the quirky scientist, he would build all the robotic minions(see picture) and weapons. He had a side quest of trying to put his brain into other mini figures and sneak into my Lego town(this was accomplished by sticking the brain head on top of the mini figure's head).
Mr. Nazi, the strategist. He was more serious than the other two. He lead the missions to get items required for any schemes they had planned. He frequently argued with Major Brain, especially about the pant droids not having hands, but respected Commander King.
The Mummy was an on and off rouge, most stories involved them attempting to awaken him as their ultimate weapon only for the mummy to turn on them, at other times he would help them, but secretly for his own purposes.
Their main base was a broken lego battle ship set that had fallen in the corner of my room next to my town table. At one point they built a "death Star"(a large multicolored sphere I made out of various parts with an inside to it), which they then used as a base from that point on.