Sean Faris as Mark Nagle

Eloise Mumford as Maggie Conway

Lucy Gallina as Holly Nagle

Dana Watkins as Scott Nagle

Daniel Eric Gold as Alex Nagle

Vanessa Matsui as Cara

Fiona Forsythe as Chloe

Catherine Bérubé as Kate Conway

Cynthia Galant as Megan

Gary Levert as Don

Rhonda McLean as Principal Stewart

Alex Paxton-Beesley as Shelby

Wade Carroll as Running Man

Andy Smith as Father of the Bride

Jean Yoon as Ms. Dylan

Darcy Donavan as Shelby's Friend (uncredited)