Question: What show on Disney channel did that star from Dumpling play a dual role in? 

Context paragraphs:
Dumplin' (film): Dumplin' is an upcoming American musical comedy film directed by Anne Fletcher and written by Kristin Hahn.  It is based on the young adult novel of same name by Julie Murphy.  The film stars Jennifer Aniston, Danielle Macdonald and Dove Cameron.

Donald's Quack Attack: Donald's Quack Attack is an American television series which ran on The Disney Channel and was later rerun on Toon Disney.  It premiered on November 2, 1992, along with "Mickey's Mouse Tracks", on The Disney Channel.  It featured Disney animated short films, especially those with Mickey Mouse, Donald Duck, and Goofy.  Each episode lasted about 22–28 minutes, leaving some time for commercials. .  A similar Mickey Mouse version was called "Mickey's Mouse Tracks", however, unlike "Mouse Tracks", "Quack Attack" was run with a manic energy.  In between the cartoon shorts, a screen would appear with a random background color (pink, blue, green, etc.) With a clip in the corner from a random Donald Duck cartoon.  There was a thermometer with Donald's head on the bottom.  When the clip showed Donald getting angry, the head on the thermometer would go up and make a dinging sound.  This was called the "Quack Attack Meter."  This 10-25 second clip would appear 2 to 4 times per show, depending on how long the shorts were.  The credits for the show did not name anyone.  Instead, it stated, "The cartoons in this program are the work of the animators from THE WALT DISNEY COMPANY over the past 60 years."  When the show premiered in 1992, it was meant to replace "Donald Duck Presents".  It was not possible to know what episode was going to be shown on any given day, but the show did feature showings of some shorts that do not show up on "The Ink and Paint Club" along with some shorts made by the "Fleischer" brothers, and clips from the animated features, such as "Snow White and the Seven Dwarfs", "Pinocchio", "Peter Pan", and "Lady and the Tramp".  "Donald's Quack Attack" aired on The Disney Channel from 1992 to 2000, and on Toon Disney from 1998 to December 2002.  From April 2001 to December 2002, "Quack Attack" usually aired weekdays at 5 a.m., and every night at midnight.  When "Quack Attack" aired on Toon Disney, there were short commercial breaks in between each cartoon, unlike the airings on The Disney Channel.  On some episodes, the first cartoon was cut from the episode to make room for commercial breaks.

Good Morning, Mickey!: Good Morning, Mickey!  is a television series that aired on The Disney Channel.  It was first aired on April 18, 1983, when The Disney Channel launched.  It was one of The Disney Channel's first original programs, and the first program aired at the channel's launch.  It featured classic Disney animated shorts.  Although Mickey Mouse shorts were the primary programming, additional cartoons featuring Goofy, Donald Duck, Chip 'n' Dale, Pluto, and others were also shown.  Its time-slot for its early run was at 7 a.m. Eastern/Pacific Time, making it the first program of The Disney Channel's 16 (later 18) hour programming day.  Later on, its time-slot was changed to 7:30 a.m. ET/PT, making it the second program of the channel's programming day.  A similar show that premiered later on The Disney Channel was "Donald Duck Presents".  "Good Morning, Mickey!"  was replaced by "Mickey's Mouse Tracks" in 1992.

Dove Cameron: Dove Cameron (born Chloe Celeste Hosterman; January 15, 1996) is an American actress and singer, best known for playing a dual role as both title characters in the Disney Channel teen sitcom "Liv and Maddie" and starring in "Descendants" as Mal, daughter of Maleficent.  She reprised her role as Mal in "Descendants 2", which premiered on July 21, 2017, on Disney Channel.

Cory in the House: Cory in the House is a television show, which aired on the Disney Channel from January 12, 2007, to September 12, 2008, and was a spin-off from the Disney show "That's So Raven".  The show focuses on Cory Baxter, who moves from San Francisco, California to Washington, D.C. with his father, after Victor Baxter gets a new job in the White House as the official head chef.  The series marks a Disney Channel first, as it is the channel's first spin-off.  This is also the only Disney Channel spin-off series to be broadcast in standard definition for the entire length of the show.  Reruns of the series have not been produced on Disney Channel, or on Disney XD; however they continue to air on the Family channel in Canada.  Raven-Symoné guest-starred, reprising her role as Raven Baxter in one episode.  In 2014 Disney Channel started airing a weekly block called "Disney Replay" on Wednesdays nights, during which episodes of "Cory in the House" air alongside "That's So Raven" and "Kim Possible", among others.

Disney Junior (Latin America): Disney Junior Latin America is a cable television channel and is a version of The Walt Disney Company-owned Disney Junior, broadcasting in all Latin America.  It is broadcast in three feeds: North Zone, South Zone and Brazil.  It is marketed to preschoolers.  Disney Junior is operated by Disney & ESPN Media Networks Latin America and The Walt Disney Company Latin America, both of The Walt Disney Company.  It was launched on June 1, 2008 as Playhouse Disney Channel.  Formerly it only was a programming block in the mornings of Disney Channel Latin America, where it still is a programming block, as Disney Junior en/no Disney Channel.  The programs are very similar to the Disney Junior channel and Disney Junior on Disney Channel block in the United States.  However, the channel also airs non-original programming.

Dual role: Dual role (also known as double role) refers to one actor playing two or more roles, which may be deliberately scripted in a play or film, or merely be a by-product of a low budget.  In a theatrical production where more than one actor plays multiple characters, it is sometimes referred to as an "Ironman" cast.  In film and television, a dual role is commonly used either for comic effect or to depict identical twins.

North Star (TV series): North Star (Hebrew: כוכב הצפון‎ ‎ , also known as "Northern Star") is an Israeli teen drama series of The Walt Disney Company, which was produced by Herzliya Studios.  The series premiered on Disney Channel in Israel on 30 November 2014.  Disney Channel Israel gave the green light for the production of a final second season in February 2015, which was first shown on 6 March 2016.  In the series "North Star" also some actors from the Israeli Disney Channel Original Series "Summer Break Stories" appear as their characters.  The finale of "North Star" was broadcast on June 16, 2016 by Israeli Disney Channel.

Mickey's Mouse Tracks: Mickey's Mouse Tracks is an American animated television series on The Disney Channel which ran from 1992 to 1995, and featured Disney cartoons and animated short films, dating from before the advent of The Disney Channel.  A similar show was "Donald's Quack Attack".  The show premiered on November 2, 1992, along with "Donald's Quack Attack", on The Disney Channel.  The show was made to replace "Good Morning, Mickey! ".  A show identical to this show called "Mickey Mouse and Friends" premiered in 1994.  It was not possible to know what episode was going to be shown on any given day, but the show "did" feature showings of some shorts that do not show up on "The Ink and Paint Club" along with some shorts made by the "Fleischer" brothers, and clips from the animated features, such as "Snow White and the Seven Dwarfs", "Pinocchio", "Dumbo", "Cinderella", and "Alice in Wonderland".  In 1996, the show was replaced by "Mickey Mouse Works", later given a plot as "House of Mouse".  In between each cartoon, a short segment featured a small clip of a Mickey Mouse cartoon, accompanied by the "Mouse Tracks" logo.  In addition to airing on The Disney Channel from 1992 to 1996, the show also ran on Toon Disney from 1998 to 1999.

Gary Marsh: Gary Marsh is President and Chief Creative Officer for Disney Channels Worldwide, where he develops and produces Disney Channel Original Series, Disney Channel Original Movies and Disney Junior Series (formerly Playhouse Disney).  He also oversees talent and casting operations for Disney Channel.  Marsh joined Disney Channel in July 1988 as Executive Director, Original Programming.  He was made Vice President eight months later and in 1994, became Senior Vice President.  In 1999, he was promoted to Executive Vice President and in 2001, Marsh assumed the role of Executive Vice President, Original Programming and Production, Disney Channel.  From 2005-09, he was President, Entertainment, Disney Channels Worldwide and in 2009 he assumed the role as Chief Creative Officer, Disney Channels Worldwide before being promoted to President and Chief Creative Officer, Disney Channels Worldwide in 2011.

Supporting paragraphs: Dumplin' (film) Dove Cameron
Answer: "Liv and Maddie"