Harold Hooper ran
Hoopers Store on
Sesame Street from
1969 to
1983 when he
died.
Big Bird always got his name wrong, most commonly calling him Mr. Looper. (Big Bird actually got his name right once, and only once, when Mr. Hooper broke his arm.)
Mr. Hooper was played by Will Lee.
Pictures:
http://members.tripod.com/~hooperfan/HShot.jpg
http://members.tripod.com/~hooperfan/Hooper9.jpg
(More at http://members.tripod.com/~hooperfan/index-2.html)