Arnold Shortman
Toran Caudell
Helga Pataki (voice) / —
Francesca Smith
Gerald Johanssen
Jamil W. Smith
Harold Berman (voice) / —
Justin Shenkarow
Helga Pataki
Francesca Marie Smith
Guest Voice
Mayim Bialik
Phoebe Heyerdahl (voice)
Anndi McAfee
Guest Voice
Dan Castellaneta
Guest Voice
Ben Aaron Hoag
Guest Voice
Pamela Hayden
Guest Voice
Adam Wylie
Rhonda Wellington Lloyd (voice)
Olivia Hack
Guest Voice
Lacey Chabert
Guest Voice
Michael Bacall
Guest Voice
Dom Irrera
Guest Voice
Kath Soucie
Guest Voice
Maurice LaMarche
Guest Voice
Nika Futterman
Guest Voice
Steven Hartman
Guest Voice
Christopher Castile
Guest Voice
Danica Ivancevic
Guest Voice
David Lander
Eugene Horowitz (voice)
Ben Diskin
Guest Voice
Jarret Lennon
Guest Voice
Caroline Aaron
Guest Voice
Shari Belafonte
Guest Voice
Lisa Fuson
Guest Voice
Michael David Donovan
Guest Voice
Tress MacNeille
Arnold (voice)
Phillip Van Dyke
Guest Voice
Carlos Alazraqui
Guest Voice
Stephen Viksten
Guest Voice
Christopher P. Walberg
Guest Voice
Joey Paul Jensen
Guest Voice
Mark Hamill
Guest Voice
Angie Jaree
Guest Voice
Lou Rawls
Guest Voice
Sam Gifaldi
Guest Voice
Elizabeth Ashley
Arnold (voice)
Spencer Klein
Guest Voice
Lauren Robinson
Guest Voice
Lloyd Sherr
Guest Voice
Mary Scheer
Guest Voice
James Belushi
Guest Voice
Ron Perlman
Guest Voice
Tony Jay
Guest Voice
Frank Martorana
Guest Voice
David Wohl
Guest Voice
Danny Cooksey
Guest Voice
Max Casella
Eugene Horowitz (voice)
Blake McIver Ewing
Guest Voice
Avriel Epps
Guest Voice
Rick Fitts
Guest Voice
John Mariano
Guest Voice
Baoan Coleman
Guest Voice
Quintin Flynn
Guest Voice
Grant Gelt
Guest Voice
Danny Strong
Guest Voice
Craig Bartlett
Guest Voice
Hiep Thi Le
Guest Voice
Christine Ebersole
Guest Voice
Marcus Toji
Guest Voice
Kevin Michael Richardson
Guest Voice
Vincent Schiavelli
Guest Voice
Michael Fishman
Guest Voice
James Keane
Guest Voice
Joseph Purdy
—
Tony Jay
Guest Voice
Dee Dee Rescher
Guest Voice
Billy Riback
—
Michael Welch