Question: Who is the voice of the character who owned a left-handed store in the "When Flanders Failed" episode of "The Simpsons"?

Context paragraphs:
The Itchy &amp; Scratchy &amp; Poochie Show: "The Itchy & Scratchy & Poochie Show" is the fourteenth episode in the eighth season of the American animated television series "The Simpsons".  It originally aired on the Fox network in the United States on February 9, 1997.  In the episode, "The Itchy & Scratchy Show" attempts to regain viewers by introducing a new character named Poochie, whose voice is provided by Homer.  The episode is largely self-referential and satirizes the world of television production, fans of "The Simpsons", and the series itself.  It was written by David X. Cohen and directed by Steven Dean Moore.  Alex Rocco is a credited guest voice as Roger Meyers, Jr. for the third and final time (having previously provided the character's voice in "Itchy & Scratchy & Marge" and "The Day the Violence Died"); Phil Hartman also guest stars as Troy McClure.  Poochie would become a minor recurring character and Comic Book Guy's catchphrase, "Worst episode ever", is introduced in this episode.  With "The Itchy & Scratchy & Poochie Show", the show's 167th episode, "The Simpsons" surpassed "The Flintstones" in the number of episodes produced for a prime-time animated series.

Ned Flanders: Nedward "Ned" Flanders, Jr. is a recurring fictional character in the animated television series "The Simpsons".  He is voiced by Harry Shearer, and first appeared in the series premiere episode "Simpsons Roasting on an Open Fire".  He is the good-natured, cheery next-door neighbor to the Simpson family and is generally loathed by Homer Simpson.  A devout Evangelical Christian with an annoyingly perfect family, he is among the friendliest and most compassionate of Springfield's residents and is generally considered a pillar of the Springfield community.

I'm Goin' to Praiseland: "I'm Goin' to Praiseland" is the nineteenth episode of the twelfth season of the American animated sitcom "The Simpsons".  It originally aired on the Fox network in the United States on May 6, 2001.  In the episode, Ned Flanders builds a Christian-themed amusement park to commemorate his dead wife, Maude Flanders.  The episode marked the return of the character Rachel Jordan (voiced by Shawn Colvin), who had previously appeared in the season eleven episode "Alone Again, Natura-Diddily".  Since airing, "I'm Goin' to Praiseland" has received mixed reviews from critics.

Homer Loves Flanders: "Homer Loves Flanders" is the sixteenth episode of "The Simpsons"<nowiki>'</nowiki> fifth season.  It originally aired on the Fox network in the United States on March 17, 1994.  In the episode, Ned Flanders invites Homer to a football game and the two become good friends.  However, Ned soon grows weary of Homer's overbearing friendship and stupid antics, and begins to hate him.

Viva Ned Flanders: "Viva Ned Flanders" is the tenth episode of "The Simpsons"' tenth season.  It first aired on the Fox network in the United States on January 10, 1999.  In the episode, Ned Flanders, who is revealed to be 60 years old, feels that he has not lived his life to the fullest.  He asks for help from his neighbor, Homer Simpson, who takes Ned to Las Vegas to show him "the right way to live".  However, while there, the two become intoxicated and accidentally married two cocktail waitresses.

A Star Is Born Again: "A Star Is Born Again" is the 13th episode from "The Simpsons"<nowiki>'</nowiki> fourteenth season.  It first aired on the Fox network in the United States on March 2, 2003.  The episode owes much of its plot to "Notting Hill" (1999).  While that film is about an actress (Julia Roberts) finding happiness with the owner of an independent bookstore, the Simpsons episode features Hollywood movie star Sara Sloane (Marisa Tomei) falling for Ned Flanders after visiting the Leftorium.

Home Sweet Homediddly-Dum-Doodily: "Home Sweet Homediddly-Dum-Doodily" is the third episode of "The Simpsons"<nowiki>'</nowiki> seventh season.  It originally aired on the Fox network in the United States on October 1, 1995.  In the episode, the Simpson children are put in the custody of Ned and Maude Flanders after a series of misadventures.  Homer and Marge are forced to attend a parenting class so they can get their children back.  Learning that none of the children have been baptized, Flanders sets up a baptism, but Homer and Marge are able to stop him just in time.

Alone Again, Natura-Diddily: "Alone Again, Natura-Diddily" is the fourteenth episode of the eleventh season of "The Simpsons", and marks the final regular appearance of the character Maude Flanders.  In the episode, she is killed in an accident while watching a speedway race, devastating Ned Flanders and prompting Homer to find a new woman for his grieving neighbor.  After a series of unsuccessful dates, Ned begins to question his faith in God.  However, his faith is restored after hearing the female lead singer of a Christian rock band, played by guest star Shawn Colvin, sing in church.  The name of the episode is in honor to the song "Alone Again (Naturally)" by Gilbert O'Sullivan.

When Flanders Failed: "When Flanders Failed" is the third episode of "The Simpsons"<nowiki>'</nowiki> third season.  It originally aired on the Fox network in the United States on October 3, 1991.  In the episode, Homer makes a wish for Ned Flanders's new left-handed store to go out of business.  The wish comes true and gets the Flanders family into financial troubles.  Ned is forced to sell his possessions, and Homer gleefully buys many of his things.  When finding out that Ned's house is to be repossessed, Homer feels guilty and decides to get the store back in business by telling all the left-handed citizens about it.  Meanwhile, Bart takes karate lessons but quits after discovering that it is not as interesting as he had expected it to be.

The Greatest Story Ever D'ohed: "The Greatest Story Ever D'ohed" is the sixteenth episode of "The Simpsons"<nowiki>'</nowiki> twenty-first season and the 457th episode overall.  It originally aired on the Fox network in the United States on March 28, 2010 (Palm Sunday and the eve of Passover).  In this episode, the Simpsons vacation in Jerusalem with Ned Flanders, but Homer does not appreciate the city's religious importance—until he gets lost in the desert, and in a severe state of dehydration, believes himself to be the Messiah.

Supporting paragraphs: When Flanders Failed Ned Flanders
Answer: Harry Shearer