Question: Joey Richter co-starred as which Harry Potter character in 2009 fan parody musicals?

Context paragraphs:
A Very StarKid Album: A Very StarKid Album contains several songs from the musical "A Very Potter Sequel", sequel to the Harry Potter parody musical "A Very Potter Musical", produced by StarKid Productions with music and lyrics by Darren Criss (who also starred in both musicals as Harry Potter), and book by Matt Lang, Nick Lang, and Brian Holden.  The album features seven of the twelve songs from "A Very Potter Sequel" as well as tracks from others members of the group.  Songs from the musical that were absent from the album were later released as the "A Very Potter Sequel" soundtrack.  The album was released digitally through iTunes and Amazon.com on July 22, 2010, and was made available on the StarKid Productions Bandcamp page on August 3, 2010.  The album reached No. 14 on the iTunes Pop Charts and No. 27 out of all Top Albums officially topping Lady Gaga (#29) and "Glee" (#31) on the charts.  The album also reached No. 19 on Top Compilations.

Joey Richter: Joseph Michael "Joey" Richter (born July 31, 1989) is an American actor, singer, and internet personality.  Richter co-starred as Ron Weasley in the fan-parody musicals, "A Very Potter Musical" (2009), "A Very Potter Sequel" (2010) and "A Very Potter Senior Year" (2012) with Bonnie Gruesen and Glee star Darren Criss, created by University of Michigan theatre group, StarKid Productions.  He starred in leading roles in two other StarKid productions: as a fictionalized version of himself in the musical "Me and My Dick" (2009) and as Bug in "Starship" (2011).  Richter graduated from the University of Michigan in 2011.  Richter also performed on The SPACE Tour along with several fellow Starkids.  In 2012, Richter performed in Starkid's Apocalyptour.

Lego Harry Potter: Years 1–4: Lego Harry Potter: Years 1–4 is a Lego-themed action-adventure video game developed by Traveller's Tales and published by Warner Bros.  The game is based on the Lego Harry Potter line and its storyline covers the first four films in the "Harry Potter" series: "Harry Potter and the Sorcerer's Stone", "Harry Potter and the Chamber of Secrets", "Harry Potter and the Prisoner of Azkaban", and "Harry Potter and the Goblet of Fire".  The game is available on the Wii, Xbox 360, PlayStation 3, Nintendo DS, PlayStation Portable, Microsoft Windows, OS X, iOS and Android.  The OS X version of the game was released on 22 February 2011 by Feral Interactive.  The game was released for the PlayStation 4 on October 21, 2016, as part of the "Lego Harry Potter Collection", which bundles the game with its sequel, "".

Lego Harry Potter: Lego "Harry Potter" is a Lego theme based on the films of the "Harry Potter" series.  Lego models of important scenes, vehicles and characters were made for the first six films and all the books released.  The first sets appeared in 2001, to coincide with the release of the first film "Harry Potter and the Philosopher's Stone" (Harry Potter and the Sorcerer's Stone in the United States).  Subsequent sets were released alongside the new films, until Harry Potter and the Order of the Phoenix.  The line then went dormant for three years.  It is unknown if the theme will again be revived to coincide with future installations in the Harry Potter franchise, such as the film Fantastic Beasts and Where to Find Them.

Lego Harry Potter: Years 5–7: Lego Harry Potter: Years 5–7 is a Lego-themed action-adventure video game developed by Traveller's Tales and published by Warner Bros.  Interactive Entertainment.  Released on 11 November 2011 in North America and 18 November in Europe, the game is based on the Lego Harry Potter line and is based on the final three books and four films in the "Harry Potter" series: "Harry Potter and the Order of the Phoenix", "Harry Potter and the Half-Blood Prince", "Harry Potter and the Deathly Hallows – Part 1", and "Harry Potter and the Deathly Hallows – Part 2".  The game was released for the PlayStation 3, Xbox 360, PlayStation Portable, PlayStation Vita, Wii, Nintendo DS, Nintendo 3DS, Microsoft Windows, iOS and Android.  The first trailer of three trailers was released 6 October 2011, and the demo was released on 1 November.  The game was released on Steam on 5 January 2012.  The OS X version of the game was released by Feral Interactive on 7 March 2012.  The game was released for the PlayStation 4 on October 21, 2016, as part of the "Lego Harry Potter Collection", which bundles the game with its predecessor, "".

Harry Potter and the Deathly Hallows: Harry Potter and the Deathly Hallows is the seventh and final novel of the "Harry Potter" series, written by British author J. K. Rowling.  The book was released on 21 July 2007, ten years after publication of "Harry Potter and the Philosopher's Stone" (1997), by Bloomsbury Publishing in the United Kingdom, in the United States by Scholastic, and in Canada by Raincoast Books, ending the series that began in 1997 with the publication of "Harry Potter and the Philosopher's Stone".  The novel chronicles the events directly following "Harry Potter and the Half-Blood Prince" (2005), and the final confrontation between the wizards Harry Potter and Lord Voldemort, as well as revealing the previously concealed back story of several main characters.  The title of the book refers to three mythical objects featured in the story, collectively known as the "Deathly Hallows"—an unbeatable wand, a stone to bring the dead to life, and a cloak of invisibility.

A Very Potter Sequel: A Very Potter Sequel (often shortened to AVPS) is a musical with music and lyrics by Darren Criss and a book by Matt Lang, Nick Lang, and Brian Holden.  The story is a parody, based on several of the "Harry Potter" novels (particularly "Harry Potter and the Philosopher's Stone", "Harry Potter and the Prisoner of Azkaban" and "Harry Potter and the Order of the Phoenix") by J. K. Rowling, as well as their film counterparts.

Ron Weasley: Ronald Bilius "Ron" Weasley is a fictional character in J. K. Rowling's "Harry Potter" series.  His first appearance was in the first book of the series, "Harry Potter and the Philosopher's Stone" as the best friend of Harry Potter and Hermione Granger.  He is a member of the Weasley family, a pure blood family, who reside in "The Burrow" outside Ottery St. Catchpole.  Along with Harry and Hermione, he is a member of the Gryffindor house.  Ron is present in most of the action throughout the series.

A Very Potter Musical: A Very Potter Musical (originally titled Harry Potter: The Musical and often shortened to AVPM) is a musical with music and lyrics by Darren Criss and A. J. Holmes and a book by Matt Lang, Nick Lang and Brian Holden.  The story is a parody, based on several of the "Harry Potter" novels (particularly "Harry Potter and the Philosopher's Stone", "Harry Potter and the Goblet of Fire" and "Harry Potter and the Deathly Hallows") by J. K. Rowling, as well as their film counterparts.

Spies Are Forever: Spies Are Forever is an original musical by the comedy troupe Tin Can Brothers (Corey Lubowich, Joey Richter, and Brian Rosenthal) and features music and lyrics by Talk Fine (Clark Baxtresser and Pierce Siebers).  The Tin Can Brothers wrote the book and produced the musical, with Lubowich taking on the role of director and Richter and Rosenthal both playing starring roles in the show.  The musical is set in the 1960s, and is a parody of the spy film genre.  It is the Tin Can Brothers' first scripted project.

Supporting paragraphs: Joey Richter Ron Weasley
Answer: Ronald Bilius "Ron" Weasley