The Mercenaries: Burtha, Clem, Jacques, and Bruno (coming soon)
Hired by Borsikov when he realized that Actra and the gang might be more than a match for his troops. These four prove to be more than a match when fighting Actra and the group, and easily overtake them (enter Afterworld).
Once ressurected, and sporting shiny new powers. Actra, Alf and Munch show the Mercs who's really top slog, sending them packing and crying to their mammas.
Of course, that's not the last time we hear of them. Certainly not.