Question: Who hosts "The Colbert Report" and wrote I Am America?

Context articles: The Colbert Report
Final episode of The Colbert Report
Dan Guterman
I Am America (And So Can You!)
Ben Karlin
Stephen Colbert
List of The Colbert Report episodes
Cultural impact of The Colbert Report
Jim Hoskinson
The Best of The Colbert Report

The Colbert Report ( ) is an American late-night talk and news satire television program hosted by Stephen Colbert that aired four days a week on Comedy Central from October 17, 2005 to December 18, 2014 for 1,447 episodes.
 The show focused on a fictional anchorman character named Stephen Colbert, played by his real-life namesake.
 The character, described by Colbert as a "well-intentioned, poorly informed, high-status idiot", is a caricature of televised political pundits. Furthermore, the show satirized conservative personality-driven political talk programs, particularly Fox News's "The O'Reilly Factor".
 "The Colbert Report" is a spin-off of Comedy Central's "The Daily Show", where he acted as a correspondent for the program for several years while developing the character.
The untitled final episode of American late-night comedy television series "The Colbert Report" is the 1,447th episode of the series overall and is part of the eleventh season.
 The final episode of "The Colbert Report" originally aired in the United States on December 18, 2014 on Comedy Central.
 In the episode Stephen becomes immortal after accidentally killing "Grimmy" during the opening of the segment of "Cheating Death with Dr. Stephen T. Colbert, D.F.A.".
 This leads to Stephen singing "We'll Meet Again" in its entirety along with a large crowd of several recognizable figures, before meeting with Santa Claus, Abraham Lincoln, and Alex Trebek on the roof of the studio.
Dan Guterman is an American television writer and producer.
 He is best known for being a writer for "The Onion" between 1999 and 2010.
 He has also worked on "The Colbert Report", "Community", and "Rick and Morty".
 Guterman received an Emmy in 2013 for his work on "The Colbert Report".
 
I Am America (And So Can You!)
 is a 2007 satirical book by American comedian Stephen Colbert and the writers of "The Colbert Report".
 It was released on October 9, 2007, with the audiobook edition released several days earlier.
 The book is loosely structured around the fictional life story of Stephen Colbert as he appears on "The Colbert Report".
 As of the April 6, 2008 publishing, the book had been on the New York Times Bestseller List in the Hardcover Nonfiction category for twenty-four weeks, ranking number one for fourteen of them.
Ben Karlin (born c. 1971) is an American television producer and writer.
 He has won eight Emmy awards, and is best known for his work in "The Daily Show with Jon Stewart" and "The Colbert Report".
 He is one of three co-creators of "The Colbert Report" along with Stephen Colbert and Jon Stewart.
 Karlin left Comedy Central in December 2006.
 He has also been a writer for TV show "Modern Family".
 Karlin will serve as producer, writer, and showrunner of a new TV series set within the Marvel Cinematic Universe titled "Damage Control", based on the Marvel Comics' team with the same name.
 The series will premiere on ABC Network sometime in 2017.
Stephen Tyrone Colbert ( , ; born May 13, 1964) is an American comedian, television host, actor, and writer.
 He is best known for hosting the satirical Comedy Central program "The Colbert Report" from 2005 to 2014, and hosting the CBS talk program "The Late Show with Stephen Colbert" beginning in September 2015.
"The Colbert Report" is a late-night series that aired nightly on Comedy Central.
 Hosted by Stephen Colbert, it was produced by Colbert, Jon Stewart, and Ben Karlin and revolved around Colbert playing the role of a populist blowhard journalist character, similar to his role on "The Daily Show".
 In "The Colbert Report", the former correspondent became the host of his own parody of media pundit programs, such as "The O'Reilly Factor" and "Hannity and Colmes".
"The Colbert Report", which premiered in American cable television on October 17, 2005, has had a massive cultural impact since its inception, when the show introduced the word "truthiness".
 Issues in and references to American and world culture are attributed to the character played by Stephen Colbert, who calls his followers the Colbert Nation.
 "The Colbert Report" is a late-night talk and news satire television program hosted by Stephen Colbert that aired on Comedy Central from October 17, 2005 to December 18, 2014 for 1,447 episodes.
 The show focused on a fictional anchorman character named Stephen Colbert, played by his real-life namesake.
 The character, described by Colbert as a "well-intentioned, poorly informed, high-status idiot", is a caricature of televised political pundits. Furthermore, the show satirized conservative personality-driven political talk programs, particularly Fox News' "The O'Reilly Factor".
 "The Colbert Report" is a spin-off of Comedy Central's "The Daily Show", where he acted as a correspondent for the program for several years while developing the character.
Jim Hoskinson is a television director.
 He currently directs "The Late Show with Stephen Colbert" on CBS and "Last Week Tonight with John Oliver" on HBO.
 He formerly directed "The Colbert Report", which aired on Comedy Central.
 Host Stephen Colbert often calls for him on-screen as "Jim" or "Jimmy" for minor assistance during "The Late Show", which he had also done on "The Colbert Report".
The Best of the Colbert Report is a single-disc DVD compiling memorable segments from "The Colbert Report"'s 2005, 2006, and 2007 seasons.
 It was released by Comedy Central on November 6, 2007.