Dave Foley

Flik (voice)

Kevin Spacey

Hopper (voice)

Julia Louis-Dreyfus

Atta (voice)

Hayden Panettiere

Dot (voice)

Phyllis Diller

Queen (voice)

Richard Kind

Molt (voice)

David Hyde Pierce

Slim (voice)

Joe Ranft

Heimlich (voice)

Denis Leary

Francis (voice)

Jonathan Harris

Manny (voice)

Madeline Kahn

Gypsy Moth (voice)

Bonnie Hunt

Rosie (voice)

Michael McShane

Tuck / Roll (voice)

John Ratzenberger

P.T. Flea (voice)

Brad Garrett

Dim (voice)

Roddy McDowall

Mr. Soil (voice)

Edie McClurg

Dr. Flora (voice)

Alex Rocco

Thorny (voice)

Carlos Alazraqui

Loco (voice)

Jack Angel

Thud (voice)