- Kirsten Dunst
- Verena von Stefan
- Gaby Hoffmann
- Odette
- Lynn Redgrave
- Miss McVane
- Rachael Leigh Cook
- Abigail 'Abby' Sawyer
- Tom Guiry
- 'Frosty' Frost
- Vincent Kartheiser
- Snake - Flat Critter
- Monica Keena
- Tinka Parker
- Matthew Lawrence
- Dennis
- Heather Matarazzo
- Theresa 'Tweety' Goldberg
- Merritt Wever
- Maureen 'Momo' Haines
- Robert Bockstael
- Frank Dewey
- Brenda Devine
- Miss Phipps
- Rosemary Dunsmore
- Page Sawyer
- Nigel Bennett
- Harvey Sawyer
- Jenny Parsons
- Mrs. Dewey
- Dorothy Gordon
- Mrs. O'Boyle
- Michael J. Reynolds
- Mr. Armstrong
- Caterina Scorsone
- Susie
- Michael Barry
- Possum - Flat Critter
- Zachary Bennett
- Skunk - Flat Critter
- Aaron Poole
- Beagle - Flat Critter
- Danny Smith
- Groundhog - Flat Critter
- FourTee
- Conrad Bateman
- Robin Dunne
- Todd Winslow
- Paul Alexander Nolan
- Charles Schumacher
- Hayden Christensen
- Tinka's Date
- Christopher Redman
- Danforth
- Shawn Ashmore
- Photographer
- Jack Duffy
- School Guard
- Richard McMillan
- Bert Chubb
- Les Porter
- Choirmaster
- Antonia de Portago
- Mademoiselle Mercier
- Nicu Branzea
- Tomas
- Barbara Radecki
- Tinka's Mother
- Paula Barrett
- Odette's Mother
- Robert Bidaman
- Verena's Father
- Phoebe Lapine
- Tinka's Sister
- Maggie Chieffo
- Student Monitor
- Simone Rosenberg
- Herald Tribune Girl
- Tania Harbick
- Girl at Dance
- Ray Doucette
- Trustee
- Tino Monte
- TV Reporter
- Gayle Redshaw
- Hockey Mistress
- Roger Dunn
- Police Captain
- Holly Sedgwick
- Mother
- Trevor Bain
- Father
- Vickie Pays
- Mother
- Michael Eric Kramer
- Father
- Alexander Narizni
- Jim Vanning
- Victor Osorno
- Falls off stage
