Nickelodeon’s upcoming Hey Arnold TV movie, announced at its upfront in March, now has a title and a cast. It will be called Hey Arnold!: The Jungle Movie and will feature 19 voice actors from the original TV series, the network said today. The two-hour TV movie will premiere in 2017.

The movie’s storyline picks up from where the original series ended in 2004 and will resolve unanswered questions and plotlines–including Arnold finally getting answers about the whereabouts of his missing parents.

Returning for the TV movie are Francesca Marie Smith (The Prince of Egypt) as Helga; Anndi McAfee (Tom and Jerry: The Movie) as Phoebe; Justin Shenkarow (Recess) as Harold; Olivia Hack (Family Guy) as Rhonda; Nika Futterman (The Boxtrolls) as Olga; Dan Butler (Frasier) as Mr. Simmons; Dan Castellaneta (The Simpsons) as Grandpa; Tress MacNeille (The Simpsons) as Grandma; Antoinette Stella (Melrose Place, writer) as Stella; Carlos Alazraqui (Happy Feet) as Eduardo; Dom Irrera (Back at the Barnyard) as Ernie; Maurice LaMarche (Futurama) as Bob Pataki; Kath Soucie (Rugrats) as Miriam; Danielle Judovits (Toy Story) as Big Patty; Danny Cooksey (The Lorax) as Stoop Kid; Jim Belushi (According to Jim) as Coach Wittenberg; and Craig Bartlett as Miles. Additionally, Lane Toran (original voice of Arnold) and Jamil Smith (original voice of Gerald) will voice several other roles.

Rounding out the cast, Alfred Molina (Spider-Man 2) voices resident villain, Lasombra, an infamous river pirate operating from a secret compound in the jungles of San Lorenzo.

New voices include: Mason Vale Cotton (Mad Men) as Arnold; Benjamin “L’il P-Nut” Flores, Jr. (Game Shakers) as Gerald; Gavin Lewis (Real Boy) as Eugene; Jet Jurgensmeyer (Bubble Guppies) as Stinky; Aiden Lewandowski (Comedy Bang! Bang!) as Sid; Laya Hayes (Santa Hunters) as Nadine; Nicolas Cantu (The Impossible Joy) as Curly; Wally Wingert (Sonic Boom) as Oskar; and Stephen Stanton (Star Wars Rebels) as Pigeon Man.

Hey Arnold!: The Jungle Movie is written and executive produced by the series’ original creator Craig Bartlett and produced by Nickelodeon Animation Studios in Burbank.