Mena Suvari as Treya Wilber

Stuart Townsend as Ken Wilber

Frances Fisher as Sue

Rebekah Graf as Kati

Mariel Hemingway as Chris

Nick Stahl as Bob Doty

Tara Subkoff as Linda

Brian McGovern as Dr. Peter Richards

Richard Leacock as Dr. Anderson

Michael Patrick McGill as Father Michael

Brian Epperson as Doctor John

Ross Forte as Sam

Steven Martini as Tim

Rosemberg Salgado as George

BoJesse Christopher as Roger

Amy Walker as Julie

Martha T. Newman as Vicky

Valentina Izumi as SF Doctor

Adam Gregor as Dr. Scheef

Aylam Orian as Norbert

Jaxy Boyd as Strong Woman

Rebecca Hayes as Counseled Woman

Lydia Hearst as Amy

Marta Gil as Counseling Circle

Marsha Henry as Checkup Doctor

Rick Shüler as John Denver

Emily Kay Townsend as DNC Nurse

Tracey Silver as Edith

Ava Brenner as Young Treya

Michael Farmer as Ken Senior

Irit Starr as Frances

Matthew Pichardo as Orderly

Tevy Poe as SF Nurse #1

Glenn Edward as Rad

Zin Syed as Dr. Harvey

Karla Weller as Nurse

Jack Cutler as Bill

Francis O'Leary as Waiter

Laurie Arnold as Lucy

Rochelle Bell as Chemo Nurse

Herve Gordon as Serious Doctor

Catherine Clark as Kristen

Amanda Fredholm as College Student/Concert Goer

Amanda Jones as College Student/Concert Goer

Antasia Kharchenko as College Student/Conert Goer

Bridie Latona as College Student/Concert Goer

Dana Pestano as College Student/Concert Goer

Elba Baumbach as College Student/Concert Goer

Ella Glabicki as College Student/Concert Goer

Emma Moore as College Student/Concert Goer

Heather Deardorff as College Student/Concert Goer

Julia Kostenevich as College Student/Concert Goer (as Julia Kellis)

Kelemwork Makonnen as College Student/Concert Goer

Louise Danson as College Student/Concert Goer

Michelle Roman as College Student/Concert Goer

Natalie Ramos as College Student/Concert Goer

Sheeba Alam as College Student/Concert Goer

Albert John Sierra as College Student/Concert Goer

Benjamin Orf as College Student/Concert Goer

Brandon Lamberty as College Student/Concert Goer

Eric Reedy as College Student/Concert Goer

Eugene Huriev as College Student/Concert Goer

Gavyn Straus as College Student/Concert Goer

Kevin Nakamura as College Student/Concert Goer

Koushik as College Student/Concert Goer

Matthew Ruggles as College Student/Concert Goer

Misha Ryan as College Student/Concert Goer

Nathan Rosado as College Student/Concert Goer

Nick DiCola as College Student/Concert Goer

Tyler Lofton as College Student/Concert Goer

Widson Charlemont as College Student/Concert Goer

Jasmine Karapetyan as College Student/Concert Goer

Austin Paz as College Student/Concert Goer

Adriana Trevino as College Student/Concert Goer

Anton Nassif as Friend

Reut Fish as Friend

AprilAnn Dais as Friend

Mantha Balourdou as Restaurant Patron

Erik Carrion as Restaurant Patron

Angelica Mendoza as Counseling Circle

Feona King as Counseling Circle

David John Kernick as Counseling Circle

Karen Wright as Counseling Circle

Deborah Wilson as Counseling Circle

Valerie Hall as Wellness Group

Kat Sachett as Wellness Group

Alex Stein as German Bar Patron

Jacob Godbey as German Bar Patron

Kai Cofer as German Bar Patron

Mark Leland as German Bar Patron

Alysa Beckner as German Bar Patron

Iran Melo as Dr. Gonzalez

Danny Pardo as Dr. Gonzalez (voice)

Thelma Gudmunds as Estelle (uncredited)

Lydia Hearst as Amy (uncredited)

David M. Jackson as Wedding Guest (uncredited)

Molly Malin as Hazel Bercholz (uncredited)

Mark Motyl as Seymoor Boorstein (uncredited)

Jose Rosete as Nathaniel Branden (uncredited)