D. B. Sweeney as Aladar (voice)

Alfre Woodard as Plio (voice)

Ossie Davis as Yar (voice)

Max Casella as Zini (voice)

Hayden Panettiere as Suri (voice)

Samuel E. Wright as Kron (voice)

Julianna Margulies as Neera (voice)

Peter Siragusa as Bruton (voice)

Joan Plowright as Baylene (voice)

Della Reese as Eema (voice)

Cathy Cavadini as Additional Voices (voice)

Edie Lehmann Boddicker as Additional Voices (voice)

Matt Adler as Additional Voices (voice)

Sandina Bailo-Lape as Additional Voices (voice)

Zachary Bostrom as Additional Voices (voice)

Chelsea Russo as Additional Voices (voice)

Holly Dorff as Additional Voices (voice)

Greg Finley as Additional Voices (voice)

Jeff Fischer as Additional Voices (voice)

Barbara Harris as Additional Voices (voice)

David Zyler as Additional Voices (voice)

Susie Stevens-Logan as Additional Voices (voice)

David McCharen as Additional Voices (voice)

Tracy Metro as Additional Voices (voice)

Daran Norris as Additional Voices (voice)

Bobbi Page as Additional Voices (voice)

Noreen Reardon as Additional Voices (voice)

Evan Sabara as Additional Voices (voice)

Aaron Spann as Additional Voices (voice)

Andrea Baker as Additional Voices (voice)

John Walcutt as Additional Voices (voice)

Camille Winbush as Additional Voices (voice)

Billy West as Additional Voices (voice)