Dave Foley 
 as Flik (voice)

Kevin Spacey 
 as Hopper (voice)

Julia Louis-Dreyfus 
 as Atta (voice)

Hayden Panettiere 
 as Dot (voice)

Phyllis Diller 
 as Queen (voice)

Richard Kind 
 as Molt (voice)

David Hyde Pierce 
 as Slim (voice)

Joe Ranft 
 as Heimlich / Additional Voices (voice)

Denis Leary 
 as Francis (voice)

Jonathan Harris 
 as Manny (voice)

Madeline Kahn 
 as Gypsy Moth (voice)

Bonnie Hunt 
 as Rosie (voice)

Michael McShane 
 as Tuck / Roll (voice)

John Ratzenberger 
 as P.T. Flea (voice)

Brad Garrett 
 as Dim (voice)

Roddy McDowall 
 as Mr. Soil (voice)

Edie McClurg 
 as Dr. Flora (voice)

Alex Rocco 
 as Thorny (voice)

David Ossman 
 as Cornelius (voice)

Carlos Alazraqui 
 as Additional Voices (voice)

Jack Angel 
 as Additional Voices (voice)

Bob Bergen 
 as Additional Voices (voice)

Kimberly J. Brown 
 as Additional Voices (voice)

Rodger Bumpass 
 as Additional Voices (voice)

Anthony Burch 
 as Additional Voices (voice)

Jennifer Darling 
 as Additional Voices (voice)

Rachel Davey 
 as Additional Voices (voice)

Debi Derryberry 
 as Additional Voices (voice)

Paul Eiding 
 as Additional Voices (voice)

Jessica Evans 
 as Additional Voices (voice)

Bill Farmer 
 as Additional Voices (voice)

Sam Gifaldi 
 as Additional Voices (voice)

Brad Hall 
 as Additional Voices (voice)

Jess Harnell 
 as Additional Voices (voice)

Brenden Hickey 
 as Additional Voices (voice)

Kate Charlotte Hodges 
 as Additional Voices (voice)

Denise Johnson 
 as Additional Voices (voice)

David L. Lander 
 as Additional Voices (voice)

John Lasseter 
 as Additional Voices (voice)

Sherry Lynn 
 as Additional Voices (voice)

Mickie McGowan 
 as Additional Voices (voice)

Courtland Mead 
 as Additional Voices (voice)

Christina Milian 
 as Additional Voices (voice)

Kelsey Mulrooney 
 as Additional Voices (voice)

Ryan O'Donohue 
 as Additional Voices (voice)

Jeff Pidgeon 
 as Additional Voices (voice)

Phil Proctor 
 as Additional Voices (voice)

Jan Rabson 
 as Additional Voices (voice)

Jordan Ranft 
 as Additional Voices (voice)

Brian M. Rosen 
 as Additional Voices (voice)

Rebecca Schneider 
 as Additional Voices (voice)

Francesca Marie Smith 
 as Additional Voices (voice)

Andrew Stanton 
 as Additional Voices (voice)

Hannah Swanson 
 as Additional Voices (voice)

Russi Taylor 
 as Additional Voices (voice)

Travis Tedford 
 as Additional Voices (voice)

Ashley Tisdale 
 as Additional Voices (voice)

Lee Unkrich 
 as Additional Voices (voice)

Jordan Warkol 
 as Additional Voices (voice)