a nobody
a nothing
cipher
common man
dud
dummy
figurehead
hollow man
insignificancy
jackstraw
lay figure
lightweight
little fellow
little guy
man of straw
mediocrity
nary one
nebbish
never a one
no man
no one
nobody on earth
nobody one knows
nobody present
nonentity
not a soul
not one
nothing
nullity
obscurity
pip-squeak
punk
puppet
pushover
runt
scrub
shrimp
small fry
small potato
small potatoes
squirt
squit
thing of naught
trifle
unknown
whiffet
whippersnapper
zero
zilch
common person
commoner
jackanapes
anybody
boy
doctor
doubt
everybody
folk
guy
i
mother
none
sir
somebody
someone
to-day
well
anyone
everyone