Directed by Kelly James   Juli Murphy   Dan Povenmire   Steve Socki   Written by Craig Bartlett   Steve Viksten   Richard Gitelson   Rachel Lipman   Joseph Purdy   Cast Toran Caudell ... Arnold (voice) Carlos Alazraqui ... Rex's Assistant (voice) Dan Castellaneta ... Arnold's Grandpa (voice) Sam Gifaldi ... Sid (voice) Tony Jay ... Rex Smythe-Higgins (voice) Joey Paul Jensen ... Mrs. Uberman / Mindy (voice) Tress MacNeille ... Miss Slovak (voice) Anndi McAfee ... Phoebe Heyerdahl (voice) Justin Shenkarow ... Harold Berman (voice) Francesca Marie Smith ... Helga Pataki (voice) (as Francesca Smith) Jamil Walker Smith ... Gerald Johanssen (voice) Daniel Stern ... Mr. Packenham (voice) Joey Stinson ... Rex Smythe-Higgins III (voice) Christopher Walberg ... Stinky Petersen (voice) David Wohl ... Principal Watrz (voice) Produced by Craig Bartlett   Melinda Wunsch Dilger   Mary Harrington   Michael Lessa   Rachel Lipman   Jamie Mitchell   Kathrin Seitz   Steve Viksten   Original Music by Jim Lang

Additional Info Premiere: January 27, 1997 DVD Release: August 29, 2008 Country: Distributor: Shout! Factory Websites: Production Companies Nicktoons Productions Nubian Nights Worldwide Games Animation (seasons 1-3) Nickelodeon Animation Studios (seasons 4-5) Nickelodeon Network Nicktoons Productions (1996-2004) Snee-Oosh Productions Distributors Nickelodeon Network   (1996-2004) (USA) (TV) CBS All Access   (2020) (USA) (video) (VOD) CBS   (2001) (USA) (TV) Nickelodeon   (USA) (TV) Paramount Home Entertainment   (1997) (USA) (VHS) Paramount Home Entertainment   (2001) (USA) (DVD) Shout! Factory   (2011) (USA) (DVD) (season one) Shout! Factory   (2012) (USA) (DVD) (Season Two, Parts One and Two) Rating Stats Overall Rating -- / 10 Our Rating -- / 10 Your Friends -- / 10 Male Users -- / 10 Female Users -- / 10 Site Ranking #2,842 / 21,074 Site Ranking