Alicia Witt

Caitlin Fairchild (voice)

John de Lancie

Colonel John 'Jack' Lynch (voice)

Elizabeth Daily

Freefall / Roxy Spaulding (voice)

Flea

Grunge / Edward Chang (voice)

Mark Hamill

Threshold / Matthew Callahan (voice)

Lauren Lane

Ivana Baiul (voice)

Cloris Leachman

Helga (voice)

Corey Burton

Additional Voices (voice)

John DeMita

Additional Voices (voice)

Julia DeMita

Additional Voices (voice)

Debi Derryberry

Additional Voices (voice)

Dave Fennoy

Additional Voices (voice)

Alex Fernandez

Additional Voices (voice)

John Hostetter

Additional Voices (voice)

Matt McKenzie

Additional Voices (voice)

Matt K. Miller

Additional Voices (voice)

Andrew Philpot

Additional Voices (voice)

Pamela Adlon

Additional Voices (voice)

Michael Sorich

Additional Voices (voice)

Kath Soucie

Rachel (voice)

Ahmet Zappa

Additional Voices (voice)

Keith Ferguson

Additional Voices (voice; uncredited)

Jennifer Hale

Additional Voices (voice; uncredited)

Phil LaMarr

Additional Voices (voice; uncredited)

Ryan Ochoa

Additional Voices (voice; uncredited)