types:
companion
one paid to accompany or assist or live with another
batman
an orderly assigned to serve a British military officer
checker
an attendant who checks coats or baggage
courtier
an attendant at the court of a sovereign
cupbearer
the attendant (usually an officer of a nobleman's household) whose duty is to fill and serve cups of wine
equerry
a personal attendant of the British royal family
escort
an attendant who is employed to accompany someone
esquire
(Middle Ages) an attendant and shield bearer to a knight; a candidate for knighthood
famulus
a close attendant (as to a scholar)
gillie
a young male attendant on a Scottish Highlander chief
groomsman
a male attendant of the bridegroom at a wedding
lifeguard,
lifesaver
an attendant employed at a beach or pool to protect swimmers from accidents
linkboy,
linkman
(formerly) an attendant hired to carry a torch for pedestrians in dark streets
loader
an attendant who loads guns for someone shooting game
matron of honor
a married woman serving as the attendant to the bride at a wedding
hospital attendant,
orderly
a hospital attendant who has general duties that do not involve the medical treatment of patients
orderly
a soldier who serves as an attendant to a superior officer
page,
varlet
in medieval times a youth acting as a knight's attendant as the first stage in training for knighthood
page
a youthful attendant at official functions or ceremonies such as legislative functions and weddings
racker
an attendant who puts pool or billiard balls into a rack
rocker
an attendant who rocks a child in a cradle
second
the official attendant of a contestant in a duel or boxing match
servitor
someone who performs the duties of an attendant for someone else
squire
a young nobleman attendant on a knight
trainbearer
one who holds up the train of a gown or robe on a ceremonial occasion
valet
someone employed to park and retrieve cars
best man
the principal groomsman at a wedding
color guard
a ceremonial escort for the (regimental) colors
minder
someone (usually in totalitarian countries) who is assigned to watch over foreign visitors