Discover
Original Release
04/01/2002
US Release
04/01/2002
Cast
| Name | Character |
|---|
| Craig Bartlett | Brainy |
| Dan Butler | Mr. Simmons |
| Dan Castellaneta | Arnold's Grandpa / Wyatt / Grandpa Phil (voice) |
| Blake Ewing | Eugene Horowitz / Eugene Horowitz (voice) |
| Taylor Gifaldi | Sid |
| Mary Gross | School Nurse Shelley |
| Olivia Hack | Rhonda Wellington Lloyd / Rhonda Wellington Lloyd (voice) |
| Alex D. Linz | Arnold |
| Tress MacNeille | Arnold's Grandma |
| Anndi McAfee | Phoebe Heyerdahl / Phoebe Heyerdahl (voice) |
Directors
Raymie Muzquiz, Tuck Tucker, Craig Bartlett
Writers
Joe Ansolabehere, Steve Viksten, Michelle Lamoreaux, Craig Bartlett, Joseph Purdy
Creators
Cast
| Name | Character |
|---|
| Craig Bartlett | Brainy |
| Dan Butler | Mr. Simmons |
| Dan Castellaneta | Arnold's Grandpa / Wyatt / Grandpa Phil (voice) |
| Blake Ewing | Eugene Horowitz / Eugene Horowitz (voice) |
| Taylor Gifaldi | Sid |
| Mary Gross | School Nurse Shelley |
| Olivia Hack | Rhonda Wellington Lloyd / Rhonda Wellington Lloyd (voice) |
| Alex D. Linz | Arnold |
| Tress MacNeille | Arnold's Grandma |
| Anndi McAfee | Phoebe Heyerdahl / Phoebe Heyerdahl (voice) |
| Justin Shenkarow | Harold Berman / Harold Berman (voice) |
| Francesca Marie Smith | Helga Pataki / Sheena / Helga Pataki (voice) |
| Jamil Walker Smith | Gerald Johanssen / Gerald Johanssen (voice) |
| Christopher Walberg | Stinky Petersen |
| David Wohl | Principal Wartz |
| Adam Wylie | Curly Gammelthorpe |
| Spencer Klein | Arnold (voice) |
Producers
| Name | Role |
|---|
| Craig Bartlett | Executive Producer |
| Mary Harrington | Executive Producer |
| Joseph Purdy | Producer |
| Kelly Crews | Producer |
| Michelle Lamoreaux | Producer |
