Kuck mal, wer da spricht!

Kirstie Alley

Mollie Jensen

John Travolta

James Ubriacco

Bruce Willis

Mikey (voice)

Olympia Dukakis

Rosie

George Segal

Albert

Abe Vigoda

Grandpa

Joy Boushel

Melissa

Don S. Davis

Dr. Fleischer

William B. Davis

Drug Doctor

Twink Caplan

Rona

Brenda Crichlow

Secretary

Alex Bruhanski

Street Worker

Aurelio Dinunzio

Orderly

Jerry Wasserman

Mr. Anal

Neal Israel

Mr. Ross

Blu Mankuma

Director

Dee Jay Jackson

Burly Orderly

Mollie Heckerling

Little Girl

Gerry Bean

Pilot Friend

Deryl Hayes

Pilot Friend

Joan Rivers

Julie (voice) (uncredited)

Jacob Haines

Mikey (age 1)

Jaryd Waterhouse

Mikey (newborn)

Douglas Tuck

Cab Stealer

Jason Schaller

Mikey

Christopher Aydon

Mikey

Louis Heckerling

Lou

Andrea Mann

Salesgirl

Casey Grant

Admitting Clerk

Oscar B. Ramos

Hospital Worker

Jeff Irvine

Admitting Doctor

Shirley Barclay

Nurse

David Berner

Mr. Impatience

Daliah Novak

Carrie

Nicholas Rice

Harry

William Britos

Home Orderly

Ida Berner

Lady

Bea Cartmell

Lady

Eleanor Maines

Lady

Ryan McIntosh

Little Boy

Enid Saunders

Ester

Nicole Stevens

Silly Baby

Christy Smith

Baby Megan

Sabrina Bailey

Sand Box Baby

Farah Abassi

Chatting Baby

Amber Brownmiller

Blowing Kiss Baby

Ariel Perryman

Nursery Baby

Nigel John Crowe

Nursery Baby

Michael Joseph Materi

Nursery Baby

Zena Darawalla

Lupe