Eliza Thornberry / Additional Voices / Cub / Ground Finches / Kid Wallah / Sand Grouse (90 episodes, 1998-2004)
Marianne Thornberry / Additional Voices / Jackal / Marianne / Otter / Penguins (90 episodes, 1998-2004)
Nigel Thornberry / Additional Voices / Bodyguard / Nigel / Poacher / Radcliffe / Sea Lions / Zebra (90 episodes, 1998-2004)
Debbie Thornberry / Additional Voices / Debbie / Ground Finches / Jaguar / Opossum / Ostrich / Otter (90 episodes, 1998-2004)
Darwin / Additional Voices / Activist #2 / Bearded Seal / Cobra / Crocodile #2 / Cub / Dentist / Hotel Man / Jackal / Penguins (90 episodes, 1998-2004)
Donnie / Tom / Donald Michael Thornberry / Additional Voices / Cub / Donnie Thornberry / Hingah / Otter / Poacher / Sea Lions / Zebra (89 episodes, 1998-2004)
Kip / Kip O'Donnell / Otter / Puma (8 episodes, 1998-1999)
Tyler Tucker (6 episodes, 2000-2001)
Shane G. (5 episodes, 2003-2004)
Crocodile #1 / Elephant / Kix / Macqaque Wallah / Monkey / Sea Lion / Tiger / Young Finch (5 episodes, 1998-2000)
Biederman / Neil Biedermann / Otter / Tandori 1 (5 episodes, 1999)
Chief / Driver / Eagle / Guard / Head Bird / Jim / Tourist #2 / Towel Man / Villager (4 episodes, 1998-2000)
Conal / Balloon Operator / Iguana / Mel / Official / Rwiti Himona (4 episodes, 1999-2003)
Biederman (4 episodes, 1998-1999)
Shi Shou / Batlaa / Girl Voice (4 episodes, 1998-2000)
Doctor / Lemke / Lion / Warthog / Water Buffalo (3 episodes, 1998-1999)
Guard / Egypt Wallah / Hasim / Jigme / Nepal / Soldier (3 episodes, 1999-2000)
Sophie Hunter / Grandma Sophie (3 episodes, 2000)
Forest Pig / Python / Snaga / Young Hyena (3 episodes, 1998-1999)
Beefy Guard / Koala Wallah / Lizard / Raj (3 episodes, 1999-2003)
Bodyguard / Bone / Grizzly Bear / Turf (3 episodes, 1999-2000)
Cordelia (2 episodes, 2003)
Goulam / Komodo Dragon (2 episodes, 1999-2000)
Jimal / Warrior (2 episodes, 1999-2000)
#2 / Crocodile #2 / Guard #1 / Lemur #1 (2 episodes, 1999-2000)
Barking Deer #2 / Stoat (2 episodes, 1999)
Female Officer / Frieda / Possum (2 episodes, 1999)
Arctic Hare / Bobri (2 episodes, 1999)
Big Buffalo / Rhino (2 episodes, 1998-2000)
Macqaque Wallah / Sipho (2 episodes, 1998-1999)
Mei-Mei / Mother Panda (2 episodes, 2000)
Dakobi / Hippo / Pygmy Leader (2 episodes, 2000)
Sea Tortoise / Tlingit Elder (2 episodes, 1998-2004)
Ben (2 episodes, 1999-2000)
Santusa (2 episodes, 1999-2000)
Feral Girl / Panther / Rosie (2 episodes, 1999)
Grizzly Bear / Harriet (2 episodes, 2000-2003)
Capybara / Emily / Parrot (2 episodes, 1998-1999)
Steamboat Captain / Tuku (2 episodes, 1998)
Cody / Gillian Gibson (2 episodes, 1999-2001)
Female Seal #1 / Ostrich (2 episodes, 1999)
Mali (2 episodes, 2000)
Maid / Stella / Stella, Maid (2 episodes, 2003)
Dr. Jomo / Jomo / Poacher (2 episodes, 1998-2000)
Customer / Dr. Freed / Inspector Tabu (2 episodes, 1999)
Gabriella / Raamba (2 episodes, 1998-2000)
Barking Deer #1 / Buck the Ibex (2 episodes, 1999-2000)
Construction Wallah / Kazi / Tenzin (2 episodes, 1999-2000)
Kid / Malay Wallah / Malay Woman / Wallah (2 episodes, 1999)
Dieter / Rajah (2 episodes, 1999)
Doorman / Driver / Malay Wallah / Teen / Ticket Seller (2 episodes, 1999)
Kit / Little Brother (2 episodes, 2002-2003)
Franz Fensterkopf (2 episodes, 1999)
Shango (2 episodes, 2000)
Zita (2 episodes, 2000)
Juka (2 episodes, 1998-2000)
D.J. / Radio Announcer (2 episodes, 1998-1999)
Phaedra (2 episodes, 2000)
Brianag / Young Woman (2 episodes, 2003)
Liesl / Platypus / Various (2 episodes, 1999)
Marmoset / Marmot (2 episodes, 2000-2001)
Red Colobus Monkey / Tumbulu (2 episodes, 1999-2000)
Self (1 episode, 2001)
Baby Condor (1 episode, 1998)
Tourist #3 (1 episode, 1998)
Officer (1 episode, 1998)
Chief (1 episode, 1998)
Gorilla (1 episode, 1998)
Kito (1 episode, 1998)
Crocodile #1 / Crocodile #3 (1 episode, 1998)
Barno (1 episode, 1998)
Hippo (1 episode, 1998)
Prof. Spinoza (1 episode, 1998)
Gazelle #2 (1 episode, 1999)
Skoot (1 episode, 1999)
Pingah / The Great Bangaboo (1 episode, 1999)
Dugong (1 episode, 1999)
Jackal / Zebra #1 (1 episode, 1999)
Sam (1 episode, 1999)
Whale (1 episode, 1999)
Clan Hyena / Mean Hyena #1 (1 episode, 1999)
Hutu (1 episode, 1999)
Hakim (1 episode, 1999)
Klaus / Thoekild (1 episode, 1999)
Cable Man / Wallah (1 episode, 1999)
Wild Horse (1 episode, 2000)
Calf (1 episode, 2000)
Merrick Dash (1 episode, 2000)
Hayden Adams (1 episode, 2000)
Mother Cheetah (1 episode, 2000)
Hartebeast / Honey Badger #2 (1 episode, 2000)
Grandfather / Mitchell Chun (1 episode, 2000)
Mato (1 episode, 2000)
Rosario Vega (1 episode, 2000)
Geogi (1 episode, 2000)
Incan Man / Rat (1 episode, 2000)
TV Emcee (1 episode, 2000)
Amy (1 episode, 2000)
Octopus (1 episode, 2000)
Colin (1 episode, 2001)
Elder Beaver (1 episode, 2001)
Bethany Gibson (1 episode, 2001)
Blanche (1 episode, 2001)
Cable Car Operator (1 episode, 2002)
Lisa Soderblom (1 episode, 2003)
Jao (1 episode, 1998)
Condor (1 episode, 1998)
Adolescent Jaguar (1 episode, 1998)
Lioness #1 (1 episode, 1998)
Marsh Deer / Tortoise (1 episode, 1998)
Ground Finch / Penguins (1 episode, 1998)
El Gordita (1 episode, 1998)
Pippo (1 episode, 1998)
Ned Fervel (1 episode, 1999)
Jim's Dad (1 episode, 1999)
Mongoose (1 episode, 1999)
Rhino (1 episode, 1999)
Jope (1 episode, 1999)
Flip (1 episode, 1999)
Earl (1 episode, 1999)
Short Tail Macqaque (1 episode, 1999)
Jake (1 episode, 1999)
Lion #1 / Zebra (1 episode, 1999)
Giraffe / Wildebeest (1 episode, 1999)
Lead Dog (1 episode, 1999)
Arabic Wallah (1 episode, 1999)
Bodyguard / Tak (1 episode, 1999)
Radio Guy (1 episode, 1999)
Tano (1 episode, 2000)
Tom Ravenhearst (1 episode, 2000)
Karroo (1 episode, 2000)
Frank Hunter (1 episode, 2000)
Dennis Tucker (1 episode, 2000)
Ramon (1 episode, 2000)
Leopard (1 episode, 2000)
Inga (1 episode, 2000)
Red Panda (1 episode, 2000)
Monkey / Tarsier (1 episode, 2000)
Fareri Farani (1 episode, 2000)
Ostrich (1 episode, 2000)
Archery Judge (1 episode, 2000)
Miss Wentworth (1 episode, 2000)
Fisherman / Mr. Trahn (1 episode, 2000)
Lena (1 episode, 2000)
Alberto (1 episode, 2000)
Ling (1 episode, 2000)
Kalla (1 episode, 2000)
Poacher #1 (1 episode, 2001)
Emu (1 episode, 2001)
Newscaster (1 episode, 2001)
Fiona Gibson (1 episode, 2001)
Yak (1 episode, 2001)
Male Reporter (1 episode, 2003)
Penelope (1 episode, 2002)
Humpback Whale (1 episode, 2003)
Muskox #2 (1 episode, 2003)
Ms. Collins (1 episode, 2003)
MacTavish (1 episode, 2003)
Moose (1 episode, 2003)
Elder's Daughter (1 episode, 2004)
Elcio (1 episode, 1998)
Lioness #2 (1 episode, 1998)
Makai (1 episode, 1998)
Sea Lions (1 episode, 1998)
German Woman / Tourist #1 (1 episode, 1998)
Female Viscasha (1 episode, 1998)
Mother Springbok (1 episode, 1999)
Hyena (1 episode, 1999)
Ostrich #1 / Sand Grouse (1 episode, 1999)
Weasel (1 episode, 1999)
Wanuug (1 episode, 1999)
Gola's Mother (1 episode, 1999)
Echidna (1 episode, 1999)
Doe (1 episode, 1999)
Hunters (1 episode, 1999)
Leopard Mom / Radio Voice (1 episode, 1999)
Sheeba (1 episode, 1999)
Female Seal #2 (1 episode, 1999)
Megapode Birds (1 episode, 1999)
Bryan (1 episode, 1999)
Gecko (1 episode, 1999)
Crew / Russian Pilot (1 episode, 1999)
Monkey / Raju (1 episode, 2000)
Cat (1 episode, 2000)
Ricardo (1 episode, 2000)
Nancy Tucker (1 episode, 2000)
Makai (1 episode, 2000)
Lead Jackal (1 episode, 2000)
Alligator (1 episode, 2000)
Asian Black Bear (1 episode, 2000)
Wildlife Ranger Sam Rainwater (1 episode, 2000)
Body Builder / Game Host (1 episode, 2000)
Vulture (1 episode, 2000)
Archer (1 episode, 2000)
Tashi (1 episode, 2000)
Miguel (1 episode, 2000)
Mitzi Dash (1 episode, 2000)
Kimo (1 episode, 2000)
Adam (1 episode, 2000)
Singer (1 episode, 2000)
Mrs. Trahn (1 episode, 2000)
Castorsky (1 episode, 2001)
Pakistani Man / Vendor (1 episode, 2001)
Female Sanctuary Worker (1 episode, 2001)
Karaoke Singer (1 episode, 2003)
Fox (1 episode, 2003)
Jesse Horn (1 episode, 2003)
Deanna Albright (1 episode, 2003)
Bald Eagle (1 episode, 2004)
Head Finch / Iguana (1 episode, 1998)
Zola (1 episode, 1998)
Foundation Voice / Old Hyena (1 episode, 1998)
Male Cub (1 episode, 1998)
Young Elephant (1 episode, 1998)
Male Viscasha (1 episode, 1998)
Gemsbok #1 (1 episode, 1999)
Joey (1 episode, 1999)
Macqaque Wallah / Mox (1 episode, 1999)
Guard (1 episode, 1999)
Gola (1 episode, 1999)
Bim / Whippet (1 episode, 1999)
Mr. Culpepper (1 episode, 1999)
Official / Tanger (1 episode, 1999)
Gazelle #1 (1 episode, 1999)
Antoinette (1 episode, 2000)
Little Boy (1 episode, 2000)
Gerda (1 episode, 2000)
Winema (1 episode, 2000)
Shaman (1 episode, 2000)
Cow #1 (1 episode, 2000)
Rebecca the Elephant Queen (1 episode, 2000)
Lemur #2 / Newscaster (1 episode, 2000)
Yuri (1 episode, 2000)
Yak (1 episode, 2000)
Wrestlers (1 episode, 2000)
Bing / Monkey (1 episode, 2000)
Villager (1 episode, 2000)
Activist #1 (1 episode, 2000)
Kickboxing Instructor (1 episode, 2000)
Antonio / Gaucho (1 episode, 2000)
Kung Villager (1 episode, 2000)
Marta (1 episode, 2000)
Sam Gibson (1 episode, 2001)
Pakistani Woman (1 episode, 2001)
Male Sanctuary Worker (1 episode, 2001)
Michelle Naidell (1 episode, 2003)
Master of Ceremonies (1 episode, 2003)
Muskox #1 (1 episode, 2003)
Iguanas / Turtle (1 episode, 1998)
Mother Elephant (1 episode, 1998)
Female Cub (1 episode, 1998)
Lyrebird (1 episode, 1999)
Sven (1 episode, 1999)
Harold Fervel (1 episode, 1999)
Jim (1 episode, 1999)
Mean Polar Bears / Ooloopie (1 episode, 1999)
Gemsbok #2 (1 episode, 1999)
MacWhirter / Radio Voice (1 episode, 1999)
Ryan (1 episode, 1999)
Des Brodean (1 episode, 1999)
Official (1 episode, 1999)
Pava (1 episode, 2000)
Todd (1 episode, 2000)
Svetlana (1 episode, 2000)
Carlitos / Gaucho (1 episode, 2000)
Cow #2 / Masai Woman (1 episode, 2000)
Truck Driver (1 episode, 2000)
Vietnamese Boy 1 (1 episode, 2000)
Mongolian Girl (1 episode, 2000)
Nursery Attendant (1 episode, 2001)
Park Worker (1 episode, 2001)
Myka (1 episode, 2003)
Hairy Highland Ox (1 episode, 2003)
Female Reporter / Headband Girl (1 episode, 2003)
Finch / Iguanas (1 episode, 1998)
Dank (1 episode, 1999)
Bull Seal (1 episode, 1999)
Olav (1 episode, 1999)
Cub (1 episode, 1999)
Big Ibex (1 episode, 2000)
Burro (1 episode, 2000)
Sonam (1 episode, 2000)
Poacher #2 (1 episode, 2001)
Marco (1 episode, 2003)
Earring Girl (1 episode, 2003)
Iguanas / Penguin (1 episode, 1998)
Tapir (1 episode, 1998)
Anna (1 episode, 1999)
Jason (1 episode, 2000)
Mongolian Man (1 episode, 2000)
Bush Pig (1 episode, 2001)
Kua (1 episode, 2003)
Inga (1 episode, 1999)
Bushbuck / Forest Hog (1 episode, 2001)
Katrina (1 episode, 1999)
Queen Elizabeth (1 episode, 2003)
Terbish (1 episode, 2000)
Camel (1 episode, 2000)
Dog (1 episode, 2000)
Arioka (1 episode, 2000)
Tunga (1 episode, 2000)
Bald Merchant / Merchant (1 episode, 2000)
Child Lobster (1 episode, 2002)