<P> Hey Arnold!: The Jungle Movie is a 2017 American animated television film based on the Nickelodeon series Hey Arnold!, which was created by Craig Bartlett and originally aired from 1996 to 2004 . It follows the 2002 film Hey Arnold!: The Movie and the two - part Hey Arnold! episode "The Journal". </P> <P> The film serves as either the definitive series finale or as a prelude to a potential revival . It answered questions left after the original run ended, including the whereabouts of Arnold's missing parents . It originally aired in the United States on November 24, 2017 on Nickelodeon, while also being simulcast on Nicktoons and TeenNick . </P> <P> Arnold (Mason Vale Cotton) and his best friend Gerald (Benjamin Flores Jr .) plan to make a humanitarian video during the summer, after their fifth grade year, to win a trip to San Lorenzo, where Arnold's parents were last seen . They try to record themselves making a home out of junk for one of their friends, eccentric Monkeyman (Craig Bartlett), but that backfires; Arnold leaves, heartbroken . </P> <P> Helga (Francesca Marie Smith), who secretly has a longtime crush on Arnold, uses various footage she's compiled over the years showing Arnold's good deeds and everyone in town surprises Arnold with the video . Arnold's teacher, Mr. Simmons (Dan Butler), reveals to everyone that Arnold's video won the competition and he, his classmates of P.S. 118, and Helga's older sister, Olga (Nika Futterman), fly to San Lorenzo . </P>

Who played arnold in hey arnold the jungle movie