Directed by Sylvia Keulen Written by Jeff Astrof   Gabor Csupo   Arlene Klasky   Carolyn Omine   Steve Pepoon   Mark Risley   Mike Sikowitz   David Silverman   Stephen Sustarsic   Cast Jodi Carlisle ... Marianne Thornberry (voice) Lacey Chabert ... Eliza Thornberry (voice) Tim Curry ... Nigel Thornberry (voice) David Eccles ... Hippo (voice) Flea ... Donnie (voice) Danielle Harris ... Debbie Thornberry (voice) Michael Jeter ... Biederman (voice) Tom Kane ... Darwin (voice) Phil LaMarr ... Steamboat Captain (voice) Keith Szarabajka ... Kip O'Donnell / Additional Voices (voice) Produced by Eryk Casemiro   Gabor Csupo   Christine Ferriter   Arlene Klasky   Jeff McGrath   Laslo Nosek   Mark Palmer   Margot Pipkin   Original Music by Drew Neumann

Additional Info Premiere: September 15, 1998 DVD Release: June 24, 2010 Country: Distributor: Shout! Factory Websites: Production Companies Klasky-Csupo Nickelodeon Network Distributors CBS All Access   (2020) (USA) (video) (VOD) Hasbro   (2003) (USA) (video) Nickelodeon Network   (1998-2001) (USA) (TV) Nickelodeon   (USA) (TV) Shout! Factory   (2011) (USA) (DVD) (season one) Shout! Factory   (2011) (USA) (DVD) (season two, part 1) Shout! Factory   (2012) (USA) (DVD) (Season Two, Part 2) Shout! Factory   (2015) (USA) (DVD) (complete series) Rating Stats Overall Rating -- / 10 Our Rating -- / 10 Your Friends -- / 10 Male Users -- / 10 Female Users -- / 10 Site Ranking #3,927 / 20,725 Site Ranking