Mahdi
Simon Legree
absolute monarch
absolute ruler
all-powerful ruler
arrogator
autarch
autocrat
bell cow
bell mare
bellwether
born leader
caesar
charismatic leader
choirmaster
choragus
commissar
conductor
coryphaeus
czar
despot
dictator
disciplinarian
driver
duce
file leader
forerunner
fugleman
hard master
inspired leader
leader
leader of men
martinet
messiah
oligarch
oppressor
pacemaker
pacesetter
pharaoh
precentor
ringleader
slave driver
standard-bearer
stickler
symphonic conductor
torchbearer
tyrant
usurper
warlord
insurer
juror
moorer
procurer
purer
reinsurer
surer