Diane Keaton as J.C. Wiatt

Sam Shepard as Dr. Jeff Cooper

Harold Ramis as Steven Buchner

Kristina Kennedy as Elizabeth Wiatt

Michelle Kennedy as Elizabeth Wiatt

Sam Wanamaker as Fritz Curtis

James Spader as Ken Arrenberg

Pat Hingle as Hughes Larrabee

Britt Leach as Vern Boone

Mary Gross as Charlotte Elkman

Kim Sebastian as Robin

Elizabeth Bennett as Mrs. Atwood

Beverly Todd as Ann Bowen

William Frankfather as Merle White

Annie O'Donnell as Wilma White

George Petrie as Everett Sloane

Victoria Jackson as Eve

John C. Cooke as Dwayne

Carol Gillies as Helga Von Haupt

Hansford Rowe as Sam Potts

Mary O'Sullivan as Katie Potts

Linda Ellerbee as Narrator (voice)

Patricia Estrin as Secretary

Peter Elbling as Maitre'd

Shera Danese as Cloak Room Attendant

Angel David as Stockboy

Nicholas Cascone as Delivery Boy

Patti Johns as Nanny

Annie Golden as Nanny

Jennifer Balgobin as Nanny

Marianne Doherty as Food Chain Secretary

Eugenie Ross-Leming as Park Mom

Dori Brenner as Park Mom

Jane Elliott as Park Mom

Ben Diskin as Ben

Paxton Whitehead as "Center" Instructor

Constance Forslund as Receptionist

John J. Philbin as Oldtimer

Richard Humphreys as Oldtimer

Billy Beck as Roofer

Margaret Hussey as Realtor

Katherine Borowitz as Yuppie Wife

Robin Bartlett as Yuppie Wife

Chris Noth as Yuppie Husband

Barry Heins as Yuppie Husband

Lisa Fuller as Stacy

Kate O'Connell as Store Owner

Mary Peters as Postmaster

Elizabeth Philbin as Nurse/Mayor

Annie Meyers-Shyer as Little Girl in Vermont

Margaret Whitton as Executive In Conference Room (uncredited)