Paul Pry
Peeping Tom
a tale-bearing animal
backseat driver
busybody
eavesdropper
gossip
gossip columnist
gossiper
gossipmonger
inquirer
inquisitive
inquisitor
intermeddler
kibitzer
meddler
newsmonger
newspaperman
nosy Parker
prier
pry
querier
querist
questioner
quidnunc
reporter
rubberneck
rubbernecker
rumormonger
scandalmonger
scopophiliac
sightseer
snoop
snooper
tabby
talebearer
taleteller
tattler
tattletale
telltale
tittle-tattler
voyeur
rumourmonger
shrew
termagant