Mark Ruffalo as Cameron

Zoe Saldaña as Maggie

Imogene Wolodarsky as Amelia Stuart

Ashley Aufderheide as Faith Stuart

Wallace Wolodarsky as Peter

Keir Dullea as Murray Stuart

Beth Dixon as Pauline Stuart

Georgia Lyman as Becca

William Xifaras as Bus Driver

Mary O'Rourke as Receptionist

Chris Papavasiliou as Mr. Fabrini

Liam McNeill as Young Man 1

Mark S. Cartier as Maitre d'

Alicia Love as Carol

Manoah Angelo as Thurgood

Nekhebet Kum Juch as Kim

Muriel Gould as Gaga

Paul Elias as Dick

Uatchet Jin Juch as Ali

Wendy Forbes as Maid

Tod Randolph as Ruth-Ann

Patrick Shea as Business Man 1

Brianne Siddall as Additional Voices #3 (voice)

Christopher Alan as Bar Fly (uncredited)

Christopher S. Porter as Bar Patron (uncredited)

George J. Vezina as Joe - Institution Patient (uncredited)

Michael Underhill as Young Businessman (uncredited)

Mike Jablon as Unfriendly Houseguest (uncredited)

David Weindel as Homeless Friend (uncredited)

Scout Lyons as School girl