Evil Genius 2: World Domination

You have to recruit one henchman to progress the game. In the side stories menu, henchman quests will appear as you complete main story. Simply recruit any 3. However you don't choose for the strory can be recruited later. DLC characters count for this achievement.

1st choice of henchman:
Janet Bombe (The Fan) - Eli Barracuda (The Son) - Jubei (The Swordsman) - IRIS (The Computer)

Rest:
Carl Cafard
Clara Jones
Doomhilda - Espectro - Pyro (DLC)
Dr. Magnolia Ming
Fuga Furukawa
Full Metal Jackie
Incendio
Sir Daniel