Amy Poehler

Angie

Tina Fey

Kate

Greg Kinnear

Rob

Dax Shepard

Carl

Romany Malco

Oscar

Sigourney Weaver

Chaffee Bicknell

Steve Martin

Barry

Maura Tierney

Caroline

Stephen Mailer

Dan

Holland Taylor

Rose

James Rebhorn

Judge

Denis O'Hare

Dr. Manheim

Kevin Collins

Architect / Rick

Will Forte

Scott

Fred Armisen

Stroller Salesman

John Hodgman

Fertility Specialist

Siobhan Fallon Hogan

Birthing Teacher

Tom McCarthy

Kate's Date

Jason Mantzoukas

Gay Couple

Dave Finkel

Gay Couple

Brian Stack

Dave

Felicity Stiverson

Wiccan

Anne L. Nathan

Bookstore Clerk

Jay Phillips

Boo-Boo Buster

Kathy Searle

Cool Mom

Almeria Campbell

Maternity Nurse

Alice Kremelberg

Rob's Daughter

Catherine Rose

Caroline's 4 Year Old

Ian Colletti

Caroline's 7 Year Old

Eric Zuckerman

Community Member

Frank Rodriguez

Community Member

Diane Cheng

Community Member

Andra Eggleston

Waitress

Andrew Hillmedo Jr.

Dante

Jon Glaser

Vegan Waiter

Erica Fae

Yoga Mom

Curt Carlson

Bailiff (uncredited)

Jeffrey Mowery

Irish Tourist (uncredited)