Question: What American-Canadian conservative political commentator, actor, and comedian that played the voice of Brain, in the 6th season of the television show "Arthur", originally broadcast on PBS?

Context articles: Arthur (season 15)
Arthur (season 9)
Arthur (season 7)
Arthur (season 5)
Arthur (season 4)
Steven Crowder
Arthur (season 11)
Ben Ferguson
Bay Buchanan
Arthur (season 6)

The 15th season of the television series "Arthur" was originally broadcast on PBS in the United States from October 10, 2011 to June 25, 2012 and contains 10 episodes, all of which are from the season 14 production, which have previously aired in other countries.
 This is the last season in which Dallas Jokic, Robert Naylor, Lyle O'Donohoe, Dakota Goyo, and Alexina Cowan voice Arthur, D.W., the Brain, Timmy and Catherine, respectively.
 This is also the final season to be produced by Cookie Jar Entertainment and to be animated with traditional animation.
 In the next season, 9 Story Media Group produces this series and the show switches to Flash animation, and would also be the first season in the US to air in the 1080i widescreen format where it was previously only done in foreign markets.
The 9th season of the television series "Arthur" was originally broadcast on PBS in the United States from December 20, 2004 to April 8, 2005 and contains 10 episodes.
 Cameron Ansell replaced Mark Rendall as the voice of Arthur, Jessica Kardos replaced Patricia Rodrigues as the voice of Sue Ellen Armstrong, and Paul-Stuart Brown replaced Alex Hood as Brain for the other half of the season, continuing in the next season.
 This is also the first season where Cookie Jar Entertainment produced this series after the CINAR-Cookie Jar rebrand.
 It produced the series until the end of Season 15, when it merged with DHX Media.
The 7th season of the television series "Arthur" was originally broadcast on PBS in the United States from October 8 to 21, 2002 and contains 10 episodes.
 The special "Arthur, It's Only Rock 'N' Roll" served as the premiere of this season.
 Jason Szwimmer replaced Oliver Grainger as the voice of D.W. Alex Hood is cast as the new voice of Alan "The Brain" Powers.
 Mark Rendall replaced Justin Bradley as Arthur (who would later dub on re-runs of season 6, due to Justin Bradley's dialogue being unfavorable).
 This is the last season in which Patricia Rodriguez voices Catherine Frensky, and this is the final season in which Mitchell Rothpan voices George Nordgren.
 The series won a Daytime Emmy in 2003 for
The 5th season of the television series "Arthur" was originally broadcast on PBS in the United States from September 4 to November 6, 2000 and contains 10 episodes.
 The special "Arthur's Perfect Christmas" served as the finale to this season.
 Steven Crowder replaced Luke Reid as Brain.
 This was the last season where Michael Yarmush voices Arthur.
 Starting in season 9, he returns to voice the character Slink, one of the Tough Customers.
 Alex Trebek guest starred as Alex Lebek on the season premiere "Arthur and the Big Riddle".
The 4th season of the television series "Arthur" was originally broadcast on PBS in the United States from October 5 to 16, 1999 and contains 10 episodes.
 This is the last season with Luke Reid voicing Brain.
 Oliver Grainger has replaced Michael Caloz as D.W. due to Caloz's voice changing after the previous season.
Steven Blake Crowder (born July 7, 1987) is an American-Canadian conservative political commentator, actor, and comedian.
 He is the host of "Louder with Crowder", a podcast covering news, pop culture, and politics, streamed on YouTube and Conservative Review's streaming service CRTV; at LouderWithCrowder.com, and on Facebook, SoundCloud, iTunes and terrestrial radio.
 He is also a former contributor at Fox News, a regular guest on TheBlaze, and frequently featured on "The Glenn Beck Program" and "The Dana Show".
The 11th season of the television series "Arthur" was originally broadcast on PBS in the United States from June 25 to September 7, 2007 and contains 10 episodes.
 This is the last season in which Cameron Ansell voices Arthur.
 Robert Naylor replaced Jason Szwimmer as the voice of D.W.
 This is also the last season in which Paul-Stuart Brown voices Brain.
 This is the last season animated by AKOM.
Benjamin Grant Ferguson (born August 28, 1981) is an American radio host, CNN conservative political commentator, and author.
 His nationally syndicated radio show, "The Ben Ferguson Show", formerly aired throughout the United States on Radio America and is now syndicated by ICON Radio Network, of which Ben is the founder and owner, on Sundays from 6 - 9 PM CT.
 He is also a regular political commentator on CNN.
Angela Marie "Bay" Buchanan (born December 23, 1948) is a prominent conservative political commentator who served as Treasurer of the United States under President Ronald Reagan.
 She is also the sister of conservative political commentator Pat Buchanan.
The 6th season of the television series "Arthur" was originally broadcast on PBS in the United States on September 24 to November 26, 2001 and contains 10 episodes.
 A shortened version of the remix of the opening theme song, "Believe in Yourself", is played at the ending credits of this season as a promotion for the third music album of the franchise.
 Olympic figure skater Michelle Kwan guest starred on "The Good Sport" as herself.
 Justin Bradley replaced Michael Yarmush as Arthur.
 When Mark Rendall was hired to voice for Arthur in season 7, he also re-dubbed for the U.S. reruns of season 6.
 Executive producer Carol Greenwald and Peter Moss said the reason was because Bradley's voice was too deep and lacked the voice acting range of Michael Yarmush.
 This is the last season where Steven Crowder voices Brain.
 The original version of these episodes were distributed in VHS and DVD home media, and they are still aired on TV in countries outside of North America.
 This is also the last season where Oliver Grainger voices D.W.