Question: Which American actress, who is known for role in "Parks and Recreation," was also the host of the Critic's Choice Television Awards?

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Nick Offerman: Nicholas "Nick" Offerman (born June 26, 1970) is an American actor, voice actor, producer, writer, comedian and carpenter widely known for his breakout role as Ron Swanson in the acclaimed NBC sitcom "Parks and Recreation", for which he received the Television Critics Association Award for Individual Achievement in Comedy.  His first major television role since the end of "Parks and Recreation" was his role as Karl Weathers in the FX series "Fargo", for which he received a Critics' Choice Television Award nomination for Best Supporting Actor in a Movie/Miniseries and Gavin in the Ice Age franchise.

3rd Critics' Choice Television Awards: The 3rd Critics' Choice Television Awards, presented by the Broadcast Television Journalists Association (BTJA), honoring the best in primetime television programming from June 1, 2012 until May 31, 2013, were held on June 10, 2013 at The Beverly Hilton in Los Angeles, California.  The nominations were announced on May 22, 2013.  The ceremony was hosted by comedian and actress Retta, while streamed live on Ustream.  Bob Newhart received the Critics' Choice Television Icon Award.

John Slattery: John M. Slattery Jr. (born August 13, 1962) is an American actor and director.  He is best known for his role as Roger Sterling in the AMC drama series "Mad Men" and for his role as Howard Stark in cameo appearances in the Marvel Cinematic Universe films "Iron Man 2", "Ant-Man", and "".  He has received four Primetime Emmy Awards nominations and two Critics' Choice Television Awards for "Mad Men".  He was also part of the "Mad Men" ensemble cast that won two SAG Awards.

6th Critics' Choice Television Awards: The 6th Critics' Choice Television Awards, presented by the Broadcast Television Journalists Association (BTJA), honoring the best in primetime television programming from June 1, 2015 until December 31, 2015, were held on January 17, 2016 at the Barker Hangar at the Santa Monica Airport in Santa Monica, California.  In addition, this year marked the first time the awards were presented with the Critics' Choice Movie Awards.  The ceremony was simulcast live on A&E and Lifetime.

21st Critics' Choice Awards: The 21st Critics' Choice Awards were presented on January 17, 2016 at the Barker Hangar at the Santa Monica Airport, honoring the finest achievements of 2015 filmmaking.  The ceremony was broadcast on A&E and hosted by T. J. Miller.  The nominees were announced on December 14, 2015.  In addition, this year marked the first time the awards were presented with the Critics' Choice Television Awards.

4th Critics' Choice Television Awards: The 4th Critics' Choice Television Awards, presented by the Broadcast Television Journalists Association (BTJA), honoring the best in primetime television programming from June 1, 2013 until May 31, 2014, were held on June 19, 2014 at The Beverly Hilton in Los Angeles, California.  The nominations were announced on May 28, 2014.  The ceremony was hosted by comedian and actor Cedric the Entertainer and was broadcast live on The CW.  Ryan Murphy received the Critics' Choice Louis XIII Genius Award.

1st Critics' Choice Television Awards: The 1st Critics' Choice Television Awards, presented by the Broadcast Television Journalists Association (BTJA), honoring the best in primetime television programming from June 1, 2010 until May 31, 2011, were held on June 20, 2011 at The Beverly Hilton in Los Angeles, California.  The ceremony was live streamed on VH1's website and was televised on ReelzChannel in an edited format two days after the ceremony occurred.  Cat Deeley served as the host of the ceremony.  The winners were announced on June 20, 2011.  Danny DeVito received the Critics' Choice Television Icon Award.

Giancarlo Esposito: Giancarlo Giuseppe Alessandro Esposito (born April 26, 1958) is an American actor.  He is best known for his portrayal of Gustavo "Gus" Fring on the AMC shows "Breaking Bad" and "Better Call Saul", a role for which he won the Best Supporting Actor in a Drama award at the 2012 Critics' Choice Television Awards and was nominated for an Outstanding Supporting Actor in a Drama Series award at the 2012 Primetime Emmy Awards.

Tatiana Maslany: Tatiana Gabriele Maslany (born September 22, 1985) is a Canadian actress best known for playing multiple roles in the science fiction thriller TV series "Orphan Black" (2013–2017), which aired on Space in Canada and BBC America in the US.  For her performances in "Orphan Black", Maslany won the Primetime Emmy Award (2016), the TCA Award (2013), two Critics' Choice Television Awards (2013 and 2014), and four Canadian Screen Awards (2014–17), in addition to receiving a Golden Globe Award and Screen Actors Guild Award nomination.  Maslany became the first Canadian actor from a Canadian series to win an Emmy Award in a key dramatic category.

Retta: Marietta Sirleaf (born April 12, 1970), better known simply as Retta, is an American stand-up comedian and actress.  She is best known for her role as Donna Meagle on NBC's "Parks and Recreation".  She has appeared in several films and television shows, and has performed stand-up on Comedy Central's "Premium Blend".  She currently stars as Barbara in Bravo's "Girlfriends' Guide to Divorce".

Supporting paragraphs: 3rd Critics' Choice Television Awards Retta
Answer: Retta