The Eggmen are the identically-uniformed henchmen of F.O.W.L., so called because of their egg-shaped helmets.
The Eggmen are F.O.W.L.'s go-to corps of minions, usually getting their orders from F.O.W.L. bigwig Steelbeak, with whose "supervillain theme" they ostensibly fit. The majority of the Eggmen wear yellow and orange jumpsuits and carry laser pistols, though they are often built for brute force.
Behind the scenes
The Eggmen were created for Darkwing Duck, first appearing in the episode Water Way to Go