busybody
ˈbɪzɪbɒdi
noun
a meddling or prying person.
others considered him an interfering busybody
meddler,interferer,mischief-maker,troublemaker,gossip,scandalmonger,muckraker,eavesdropper,intruder,ghoul,gawker,nosy parker,snoop,snooper,rubberneck,gawper,buttinsky,Paul Pry,pryer,pry