flunky

butler, footman, houseboy, majordomo, man, manservant, servitor, valet

handmaiden (also handmaid), housekeeper, housemaid, lady-in-waiting, maid, maidservant, woman

yes-man

hanger-on, leech, parasite, sponge, sponger

henchman, lackey, minion, stooge

groveler, idolater (or idolator), worshipper (or worshiper), zealot

adherent, convert, disciple, follower, partisan (also partizan), pupil, votary