and they were voiced by?
Jack McBrayer as Felix; Raymond S. Persi as Mayor Gene; Sarah Silverman as Vanellope von Schweetz
Jack McBrayer
Jack lent his voice to the Disney animated film "Wreck-It Ralph", playing the title character's close friend and video game opponent Fix-It Felix, Jr. 
who does the voice of ralph in wreck it ralph John C. Reilly what is the genre of it? 3D computer-animated comedy film who are the other characters in it? Felix ; Mayor Gene; Vanellope von Schweetz
wiki:15168978
Jack McBrayer [SEP] Career
In 2011, he also appeared in "The Simpsons", in the season 22 episode, "The Great Simpsina" as Ewell Freestone, 'Peach Guy'. In the fall of 2012, Jack lent his voice to the Disney animated film "Wreck-It Ralph", playing the title character's close friend and video game opponent Fix-It Felix, Jr. More recently, he has starred alongside Los Angeles Clippers player Blake Griffin in Kia commercials, and in 2013 appeared in a commercial for Barnes & Noble. McBrayer's Adult Swim series "The Jack and Triumph Show" premiered in February 2015. In September 2016, on the season 10 premiere episode of "The Big Bang Theory", McBrayer played Penny's older brother Randall.