- Maya Ritter
- Molly McIntire
- David Aaron Baker
- Dr. James McIntire
- Tory Green
- Emily Bennett
- Sarah Manninen
- Charlotte Campbell
- Genevieve Farrell
- Jill McIntire
- Andrew Chalmers
- Richard 'Ricky' McIntire
- Molly Ringwald
- Mrs. Helen McIntire
- Hannah Fleming
- Susan Shapiro
- Samantha Somer Wilson
- Linda Rinaldi
- Josette Halpert
- Alison Hargate
- Sarah Orenstein
- Mrs. Gladys Gilford
- Eliza Jane Scott
- Ms. Lavonda
- Amy Stewart
- Aunt Eleanor
- Mary Francis Moore
- Ms. Littlefield
- Elva Mai Hoover
- Ms. Shaw
- Geri Hall
- Mrs. Taft
- Bradley Reid
- Billy Morgan
- Joe Sacco
- Lt. Tom Davies
- Keith Knight
- Principal Stevens
- Landon Norris
- Tim Rutledge
- Dana Gould
- Pageant Boy
- Luke Muirhead
- Delivery Boy
- Steve Carey
- Military Messenger
- Cameron Lewis
- Dwight Koloski
- Jason Spevack
- Jimmy - Boy Speller
- Alexa Rose Steele
- Jane
- Sean Wayne Doyle
- Conductor
- Hanna Cowie
- Tap Girl #1
- Amanda Finelli
- Tap Girl #2
- Roxanne Hummel
- Tap Girl #3
- Stephanie Troyak
- Tap Girl #4
- Morgan Mitchell
- Tap Girl #5
- Jordana Mirsky
- Tap Girl #6
- Chelsea Stowe
- Tap Girl #7
- Natasha Crombie
- Tap Girl #8
- Jerri-Lynne Smith
- Tap Girl #9
- Thomas Brodie-Sangster
- Boy in Spelling Bee
- Linda Darnell
- Self
- Kaleigh Howland
- Reporter
- Bill Timoney
- Newsreel narrator
- Audrey Twitchell
- Background voice
- Karen Musey
- Jitterbug Dancer
