Nathan Lane
Spot Helperman / Scott Leadready II / Scott Manly-Manning (voice)
Acting
Kelsey Grammer
Dr. Ivan Krank (voice)
Acting
Shaun Fleming
Leonard Amadeus Helperman (voice)
Acting
Debra Jo Rupp
Mrs. Mary Lou Moira Angela Darling Helperman (voice)
Acting
David Ogden Stiers
Mr. Jolly (voice)
Acting
Jerry Stiller
Pretty Boy (voice)
Acting
Paul Reubens
Dennis (voice)
Acting
Megan Mullally
Adele (voice)
Acting
Wallace Shawn
Principal Crosby Strickler (voice)
Acting
Rob Paulsen
Ian Wazselewski (voice)
Acting
Jay Thomas
Barry Anger (voice)
Acting
Estelle Harris
Mrs. Boogin (voice)
Acting
Genie Francis
Marsha / Marcia (voice)
Acting
Anthony Geary
John / Juan (voice)
Acting
Rosalyn Landor
The Blue Fairy (voice)
Acting
David Maples
Beefeater (voice)
Writing
Pamela Adlon
Trevor / Taylor / Tyler (voice)
Acting
Timothy Stack
Father (voice)
Acting
Emma Steinkellner
Little Girl (voice)
Acting
Ken Swofford
Officer White (voice)
Acting
Lauren Tom
Younghee (voice)
Acting
Mae Whitman
Leslie Dunkling (voice)
Acting
Kevin Michael Richardson
Conductor (voice)
Acting