Michael
Zach Braff
Chris
Casey Affleck
Jenna
Jacinda Barrett
Izzy
Michael Weston
Kenny
Eric Christian Olsen
Kim
Rachel Bilson
Anna
Blythe Danner
Stephen
Tom Wilkinson
Arianna
Marley Shelton
Lisa
Lauren Lee Smith
Professor Bowler
Harold Ramis
Izzy's Mother
Ellen David
Mark
David Haydyn Jones
Mark
David Haydn-Jones
Danielle
Cindy Sampson
Stripper #1
Lisa MacKay
Natasha Petrov
Inna Korobkina
Stripper #2
Patricia Stasiak
Mark's Father
Mark Walker
Mark's Uncle
Larry Day
Eva
Erika Rosenbaum
Matty
Alexis Legault
Matty
Olivier Legault
Arianna's Lover
Simon Alain
Mark's Mother
Danette MacKay
Architect Partner
Ian Finlay
Young Architect
Barry Julien
Kim's Friend
Alexandra Ruddy
Secretary
Mariah Inger
Female Patient
Monique Phillips
Bartender
Danny Blanco Hall
Camper Salesman
Andrew Shaver
Izzy's Uncle
Danny Wells
Michael's Neighbor
Gouchy Boy
Gardener
Bill Corday
University Professor
David Rigby
Man Jogging
Gene Hogoboom