Lacey Chabert

Eliza Thornberry (voice)

Tom Kane

Darwin (voice)

Cree Summer

Phaedra (Elephant) (voice)

Tim Curry

Nigel Thornberry / Col. Radcliff Thornberry (voice)

Lynn Redgrave

Cordelia Thornberry (voice)

Danielle Harris

Debbie Thornberry (voice)

Flea

Donnie Thornberry (voice)

Crystal Scales

Cheetah Cubs (voice)

Kimberly Brooks

Tally (Cheetah Cub) (voice)

Alfre Woodard

Akela (Cheetah Mother) (voice)

Brock Peters

Jomo (voice)

Melissa Greenspan

Sarah Wellington (voice)

Alexandra Boyd

Victoria (voice)

Moira Quirk

Jane (voice)

Jodi Carlisle

Marianne Thornberry (voice)

Mae Whitman

Schoolgirl (voice)

Marisa Tomei

Bree Blackburn (voice)

Rupert Everett

Sloan Blackburn (voice)

Earl Boen

Gorilla (voice)

Kevin Michael Richardson

Shaman Mnyambo (voice)

Brenda Blethyn

Mrs. Fairgood (voice)

Tara Strong

Schoolgirl (voice)

Hynden Walch

Schoolgirl (voice)

Roger L. Jackson

Reggie (Squirrel) / Thunder (voice)

John Kassir

Squirrel (voice)

Charles Shaughnessy

Squirrel (voice)

Jeff Coopwood

Tim (Park Ranger) (voice)

Didier M. Ngole

Ranger / BaAka Villager (voice)

Tony Okungbowa

Ranger (voice)

Billy Brown

Rhino (voice)

James Brown Orleans

Zebu (voice)

Michael Chinyamurindi

Cart Owner (voice)

Obba Babatundé

Boko (voice)

Malonga Casquelourd

BaKA Leader (voice)

Alu Amina

BaKA Villager (voice)

Nsaka Kaninda

BaAka Villager (voice)

B. Dido Tshimanga

BaAka Villager (voice)

Camille Ntoto

BaAka Villager (voice)

Colette Elimo

BaAka Villager (voice)

Lunkeba Tezo

BaAka Villager (voice)

Jeanne Klimi

BaAka Villager (voice)

Inousca Kayombo

BaAka Villager (voice)

Mata Mokwala

BaAka Villager (voice)

Keith Szarabajka

Poacher (voice)