Meryl Streep

Kay

Tommy Lee Jones

Arnold Soames

Steve Carell

Dr. Bernie Feld

Jean Smart

Eileen, Kay's Friend

Marin Ireland

Molly, Their Daughter

Ben Rappaport

Brad, Their Son

Brett Rice

Vince, Arnold's Friend

Becky Ann Baker

Cora, The Waitress

Elisabeth Shue

Karen, The Bartender

Charles Techman

Charlie, The Docent

Danny Flaherty

Danny, The Bookstore Clerk

Damian Young

Mike, The Innkeeper

Mimi Rogers

Carol, The Neighbor

Ann Harada

Ann

Jack Haley

Jack, The Happy Husband

Patch Darragh

Mark, Their Son-in-Law

Susan Misner

Dana, Doctor Feld's Wife

Rony Clanton

Ronnie, The Taxi Driver

John Srednicki

John, The Waiter

Madeline Ruskin

Maddie, Brad's Girlfriend

Lee Cunningham

Lee, The Unhappy Wife

Paul Jude Letersky

Paul, The Unhappy Husband

Stephen Lee Davis

Steve, The Grocery Shopper

John Franchi

Driver (uncredited)

Anita Storr

Wedding Beach Goer (uncredited)