Characters played by Chris Rock
Osmosis Jones
Characters played by Laurence Fishburne
Thrax
Characters played by David Hyde Pierce
Drix
Characters played by Brandy Norwood
Leah
Characters played by William Shatner
Mayor Phlegmming
Characters played by Ron Howard
Tom Colonic
Characters played by Kid Rock
Kidney Rock
Characters played by Kenny Olson
Kidney Rock
Characters played by Jason Krause
Kidney Rock
Characters played by Joe C.
Kidney Rock
Characters played by Stefanie Eulinberg
Kidney Rock
Characters played by Jimmie Bones
Kidney Rock
Characters played by Uncle Kracker
Kidney Rock
Characters played by Jonathan Adams
Additional Character Voice
Characters played by Carlos Alazraqui
Additional Character Voice
Characters played by Keith Anthony
Additional Character Voice
Characters played by Eddie Barth
Additional Character Voice
Characters played by Sally Ann Brooks
Additional Character Voice
Characters played by Rodger Bumpass
Additional Character Voice
Characters played by Michael Carven
Additional Character Voice
Characters played by Paul Christie
Additional Character Voice
Characters played by Janis Dardaris
Additional Character Voice
Characters played by Wendy Dillon
Additional Character Voice
Characters played by Antonio Fargas
Additional Character Voice
Characters played by Eddie Frierson
Additional Character Voice
Characters played by Donald Fullilove
Additional Character Voice
Characters played by Jackie Gonneau
Additional Character Voice
Characters played by Shannon Gregory
Additional Character Voice
Characters played by Rif Hutton
Additional Character Voice
Characters played by Richard Steven Horvitz
Additional Character Voice
Characters played by Art Kimbro
Additional Character Voice
Characters played by Joyce Kurtz
Additional Character Voice
Characters played by Anne Lockhart
Additional Character Voice
Characters played by Sherry Lynn
Additional Character Voice
Characters played by Danny Mann
Additional Character Voice
Characters played by Mickie McGowan
Additional Character Voice
Characters played by John Melendez
Additional Character Voice
Characters played by Héctor Mercado
Additional Character Voice
Characters played by Paul Pape
Additional Character Voice
Characters played by Marilyn Pasekoff
Additional Character Voice
Characters played by Chris Phillips
Additional Character Voice
Characters played by Lynne Redding
Additional Character Voice
Characters played by Al Rodrigo
Additional Character Voice
Characters played by Herschel Sparber
Additional Character Voice
Characters played by Doug Stone
Additional Character Voice
Characters played by Steve Susskind
Additional Character Voice
Characters played by Keri Tombazian
Additional Character Voice
Characters played by Paul Tuerpe
Additional Character Voice
Characters played by Robert Wisdom
Additional Character Voice
Characters played by Bill Murray
Frank Detorre
Characters played by Molly Shannon
Mrs. Boyd
Characters played by Chris Elliott
Bob
Characters played by Elena Franklin
Shane Detorre
Characters played by Danny Murphy
Zookeeper Superintendent
Characters played by Jack McCullough
Zookeeper
Characters played by Kathy Wege
Mrs. Claris
Volcano Lady
Characters played by Will Dunn
Oyster Boy
Characters played by Jackie Flynn
School Janitor
Characters played by Kelsey Jordan
Bus Girl #1
Characters played by A.B. Farrelly
Bus Girl #2
Characters played by Jesse Peter
Laughing Boy
Characters played by John-Eliot Jordan
Pea Soup Manager
Characters played by Nancy Byers
Pea Soup Supervisor
Characters played by Kevin J. Flynn
Docky's Clamshack Waiter
Characters played by Sean Gildea
Dreamy Photographer
Characters played by Kathryn Frick
Nurse #1
Characters played by Nikki Tyler-Flynn
Nurse #2
Characters played by Elizabeth Jordan
Nurse #3
Characters played by Zen Gesner
Emergency Room Doctor #1
Characters played by Marc Hyman
Emergency Room Doctor #2
Characters played by Zak Penn
Emergency Room Doctor #3
Characters played by Bob O'Brien
The Zoo Visitors & Staff
Characters played by Tom Beachene
The Zoo Visitors & Staff
Characters played by Diane Conrad
The Zoo Visitors & Staff
Characters played by Judy Conrad
The Zoo Visitors & Staff
Characters played by Bob Fennessy
The Zoo Visitors & Staff
Characters played by John Britten
The Zoo Visitors & Staff
Characters played by Katie Britten
The Zoo Visitors & Staff
Characters played by Marlene Malone
The Zoo Visitors & Staff
Characters played by Grady O'Connor
The Zoo Visitors & Staff
Characters played by Barbara O'Connor
The Zoo Visitors & Staff
Characters played by Jacqueline Wentzell
The Zoo Visitors & Staff
Characters played by Morgan Wentzell
The Zoo Visitors & Staff
Characters played by Jamie Heres
The Zoo Visitors & Staff
Characters played by Jimmy Heres
The Zoo Visitors & Staff
Characters played by Thomas Jordan
The Zoo Visitors & Staff
Characters played by Ruth Meyer
The Zoo Visitors & Staff
Characters played by Mandy Marsh
The Zoo Visitors & Staff
Characters played by Tommy Barbieri
The Zoo Visitors & Staff
Characters played by Allison Barbieri
The Zoo Visitors & Staff
Characters played by Erica Johnson
The Zoo Visitors & Staff
Characters played by Sydney J. Bartholomew Jr.
The Zoo Visitors & Staff
Characters played by Bill Beauchene
The Science Fair Contestants & Families
Characters played by Buzz Dunn
The Science Fair Contestants & Families
Characters played by Laura Dunn
The Science Fair Contestants & Families
Characters played by Krista-Jean Forand
The Science Fair Contestants & Families
Characters played by Kena Flynn
The Science Fair Contestants & Families
Characters played by Christina Kacmar
The Science Fair Contestants & Families
Characters played by Diana O'Donnell
The Science Fair Contestants & Families
Characters played by Dick Silva
The Science Fair Contestants & Families
Characters played by Allison Kacmar
The Science Fair Contestants & Families
Characters played by Nicole Brathwaite
The Volcano Gal
Characters played by Emily O'Day
The Volcano Gal
Characters played by Brianna Cabral
The Volcano Gal
Characters played by Catherine Dunphy
The Volcano Gal
Characters played by Chandler Vuilleumier
The Volcano Gal
Characters played by Bill Wade
Pea Soup Staff
Characters played by Bo Cleary
Pea Soup Staff
Characters played by Bruce McIntyre
Pea Soup Staff
Characters played by Colleen O'Donnell
Docky's Clamshack
Characters played by Maryjane Foy
Docky's Clamshack
Characters played by Jo Ann Nicewicz
Docky's Clamshack
Characters played by Jillian Nicewicz
Docky's Clamshack
Characters played by Docky
The Bikini Gang
Characters played by Heidi Hetzel
The Bikini Gang
Characters played by Patricia Guiggey
The Bikini Gang
Characters played by Rachael Kasner
The Bikini Gang
Characters played by George Kouri
The Bikini Gang
Characters played by Joe Murphy
The Bikini Gang
Characters played by Dick Rubin
The Bikini Gang
Characters played by Amy Suhay
The Bikini Gang
Characters played by Brian Mone
Police Officer
Characters played by Sean Fitzgerald
Police Officer
Characters played by Beth Jordan
The Emergency Room Nurse
Characters played by Mattie Ostiguy
The Emergency Room Nurse
Characters played by Grace Costa
The Emergency Room Nurse
Characters played by Maura O'Brien
The Emergency Room Nurse
Characters played by John J. Burke
Student
Characters played by Kathy Farrelly
Nurse
Characters played by Shawn Fogarty
Father at Science Fair
Characters played by Camden Munson
(uncredited)
Characters played by David Ossman
Scabies
Characters played by Joel Silver
Police Chief
Characters played by Ben Stein
Doc
Characters played by James Arnold Taylor
Coffee Holding White Blood Cell
Characters played by Ben Urann
Student
Characters played by Jillian Wheeler
Student