- Matthew Broderick
- Professor Harold Hill
- Kristin Chenoweth
- Marian Paroo
- Victor Garber
- Mayor Shinn
- Debra Monk
- Mrs. Paroo
- Molly Shannon
- Mrs. Eulalie Mackechnie Shinn
- David Aaron Baker
- Marcellus Washburn
- Clyde Alves
- Tommy Djilas
- Cameron Adams
- Zaneeta Shinn
- Cameron Monaghan
- Winthrop Paroo
- Linda Kash
- Alma Hix
- Patrick McKenna
- Charlie Cowell
- Megan Moniz
- Amaryllis
- Richard Fitzpatrick
- Constable Locke
- Jenni Burke
- Mrs. Squires
- Pete Luciano
- Jacey Squires
- Marty Beecroft
- Ewart Dunlop
- Joe Heslip
- Olin Britt
- Harrison L. Wayne
- Town Boy #1
- Pearce Coulson
- Oliver Hix
- Janine Theriault
- Ethel Toffelmeier
- Tannis Burnett
- Maud
- Janet van de Graaf
- Pick-a-Little Lady #5
- Sharron Matthews
- Pick-a-Little Lady #6
- Derwin Jordan
- Salesman #1
- Timm Zemanek
- Salesman #2
- Juan Chioran
- Salesman #3
- Jeff Pustil
- Salesman #4
- Cliff Saunders
- Salesman #5
- Greg Ellwand
- Card Player #2
- Sheri Godfrey
- Sadder but Wiser Girl
- Boyd Banks
- Train Conductor
- Mia DiLena
- Gracie Shinn
- Lucas Beaver
- Teen Boy #12
- Paul Becker
- Teen Boy #3
- Danielle Benton
- Teen Girl #4
- Shawn Byfield
- Dancer / School Band
- Raquel Cadilha
- Town Girl #1
- Rod Campbell
- Shopkeeper
- Austin Di Iulio
- Ensemble
- Arlene Duncan
- Town Woman #1
- Greg Farkas
- Teen Boy #8
- Corey Gorewicz
- Actor / Dancer
- Shaunna Hamat
- Tween Girl #2
- Benjamin Hollingsworth
- Honeymooner
- Ericka Hunter
- (as Ericka Yang)
- Karen Jewels
- Principal
- Ron Kennell
- Bar Patron
- Philip Douglas Kerr
- Mr. Tompkins
- Serge Kushnier
- Actor / Dancer
- Duff MacDonald
- Town Barber
- Larry Mannell
- Mule Man
- Janet Field Moase
- (as Janet Field-Moase)
- Gerry Quigley
- Card Player
- Vincent Tong
- Dancer
- Jesse Weafer
- Actor / Dancer
- Jeff Dimitriou
- Teen Boy
- Molly Howe
- Little Lina
- Ashley Leggat
- Actor / Dancer (uncredited)
- Jason Wise
- Dancer / Student / Band Member (uncredited)
