Dr. Kochin

Resistance Saga
When Kochin's partner Dr. Wheelo was frozen in ice along with his laboratory, Kochin had to find a way to thaw the ice to continue his work on Bio-Warriors. When Kochin found Krillin and Gohan with all of the Dragon Balls he sent his Bio-Men do distract them while he took the Dragon Balls, but was thwarted by Piccolo who easily defeated his warriors and left with the Dragon Balls.