Mandy Moore as Sadie Jones

John Krasinski as Ben Murphy

Robin Williams as Reverend Frank

Eric Christian Olsen as Carlisle

Christine Taylor as Lindsey Jones

Josh Flitter as Choir Boy

DeRay Davis as Joel

Peter Strauss as Mr. Jones

Grace Zabriskie as Grandma Jones

Roxanne Hart as Mrs. Jones

Mindy Kaling as Shelly

Angela Kinsey as Judith

Rachael Harris as Janine

Brian Baumgartner as Jim

David Quinlan as Expectant Father

Bob Balaban as Jewelry Store Clerk (uncredited)

Wanda Sykes as Doctor (uncredited)

Dylan Gentile as St. Augustine's Choir

Marie T. Hodgson as St. Augustine's Choir

Jess Rosenthal as Jewelry Clerk

Valentin Almendarez as Jewelry Store Customer

Nicole Randall Johnson as Louise

Tashana Haye as Church Kid Sarah

Sarah Kate Johnson as Church Kid Laurie

Travis T. Flory as Church Kid Manny

Dominic Swingler as Joel & Shelly's Kid

Devin Swingler as Joel & Shelly's Kid

Diego Swingler as Joel & Shelly's Kid

Cynthia Ettinger as Macy's Clerk

Gillian Skupa as Macy's Changing Room Lady

Poncho Hodges as Macy's Security Guard

Rubén Garfias as Coach

Kelsey Harper as Carlisle's Girlfriend

Irene Karas as Birthing Mom

Derek Green as Doctor

Christine Cannon as Delivery Doctor

Anelia Dyoulgerova as Belly Dancer

Nathan Barrett as Starbucks Customer

Darla Fay as Starbucks Customer

Sean Tyson as Starbucks Customer

Grant Gershon as St. Augustine's Choir Director

Crispin Barrymore as St. Augustine's Choir

Tania Batson as St. Augustine's Choir

Joseph Bazyouros as St. Augustine's Choir

Edie Lehmann Boddicker as St. Augustine's Choir

Paul Bent as St. Augustine's Choir

Cindy Bourquin as St. Augustine's Choir

Leanna Brand as St. Augustine's Choir

Andy Brown as St. Augustine's Choir

Karen Hogle Brown as St. Augustine's Choir

Vicky Preston Brown as St. Augustine's Choir

Alvin Chea as St. Augustine's Choir

Leberta Lorál as St. Augustine's Choir

Pablo Corá as St. Augustine's Choir

Claire Seely Fedoruk as St. Augustine's Choir

Amy Fogerson as St. Augustine's Choir

Rachelle Fox as St. Augustine's Choir

Michael Freed as St. Augustine's Choir

Michael Geiger as St. Augustine's Choir

Scott Graff as St. Augustine's Choir

Steven Harms as St. Augustine's Choir

Saundra Hall Hill as St. Augustine's Choir

Clydene Jackson as St. Augustine's Choir

Diana Zaslove Kahn as St. Augustine's Choir

Teri Eiko Koide as St. Augustine's Choir

Bob Lewis as St. Augustine's Choir

Sean McDermott as St. Augustine's Choir

Alice Kirwan Murray as St. Augustine's Choir

Bobbi Page as St. Augustine's Choir

Steven Pence as St. Augustine's Choir

Fletcher Sheridan as St. Augustine's Choir

Kevin St. Clair as St. Augustine's Choir

Cahen Taylor as St. Augustine's Choir

Carmen Twillie as St. Augustine's Choir

Winter Watson as St. Augustine's Choir

John J West as St. Augustine's Choir

Gerald White as St. Augustine's Choir

Eyvonne Williams as St. Augustine's Choir

Cynthia Youngblood as Mom in Labor (uncredited)

Elizabeth Noelle Japhet as Church Goer (uncredited)