Episodes The Origin of Donnie August 18, 2001 The Trouble with Darwin October 31, 2001 The Origin of Donnie: Part 2 August 18, 2001 The Origin of Donnie: Part 3 August 18, 2001 The Origin of Donnie: Part 4 August 18, 2001 Hot Air June 1, 2002 Directed by Ron Noble   Sylvia Keulen   Written by Jeff Astrof   Gabor Csupo   Arlene Klasky   Steve Pepoon   Mark Risley   Mike Sikowitz   David Silverman   Stephen Sustarsic   Jill Gorey   Barbara Herndon   David Regal   Cast Lacey Chabert ... Eliza Thornberry (3 episodes) Jodi Carlisle ... Marianne Thornberry (3 episodes) Tim Curry ... Nigel Thornberry (3 episodes) Flea ... Donnie (3 episodes) Danielle Harris ... Debbie Thornberry (3 episodes) Tom Kane ... Darwin (3 episodes) Jane Goodall ... Self (voice) Richard Burgi ... Poacher #1 (voice) Ifeoma Marie ... Female Sanctuary Worker (voice) Fredson Mayiek ... Male Sanctuary Worker (voice) Kelly Packard ... Nursery Attendant (voice) Austin Stoker ... Poacher #2 (voice) Willie Wheaton ... Bush Pig (voice) Gary Anthony Williams ... Forest Hog / Bushbuck (voice) Darrin Conquer ... Cable Car Operator (voice) Susannah Devereux ... Penelope (voice) Michael Gough ... Rwiti Himona / Balloon Operator (voice) Christopher Rodriguez Marquette ... Little Brother (voice) (as Chris Marquette) Riley Brock ... Child Lobster (voice) Produced by Gabor Csupo   Arlene Klasky   Mark Risley   Kate Boutilier   Eryk Casemiro   Cella Nichols Duffy   Maureen Iser   Jeff McGrath   Laslo Nosek   Original Music by Drew Neumann

Additional Info Premiere: August 18, 2001 DVD Release: December 01, 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 6.6 / 10 Our Rating -- / 10 Your Friends -- / 10 Male Users -- / 10 Female Users -- / 10 Site Ranking #3,942 / 21,075 Site Ranking #3,938 The House By The Cemetery (1981) #3,939 The Wild Thornberrys: Season 2 (1999) #3,940 The Wild Thornberrys: Season 5 (2003) #3,941 The Wild Thornberrys: Season 1 (1998) #3,942 The Wild Thornberrys: Season 4 (2001) #3,943 The Apartment (1996) #3,944 I Am The Pretty Thing That Lives In The House (2016) #3,945 Demon Slayer: Kimetsu No Yaiba - Mt. Natagumo Arc (2020) #3,946 The Hobbit (1977)