Poster for the movie My Stepmother Is an Alien

My Stepmother Is an Alien

1988 • 108 minutes
ComedyScience Fiction

Trying to rescue her home planet from destruction, a gorgeous extraterrestrial named Celeste arrives on Earth and begins her scientific research. She woos quirky scientist Dr. Steve Mills, a widower with a young daughter. Before long, Celeste finds herself in love with Steve and her new life on Earth, where she experiences true intimacy for the first time. But when she loses sight of her mission, she begins to question where she belongs.

Picture of Dan Aykroyd

Dan Aykroyd

Steven Mills

Picture of Kim Basinger

Kim Basinger

Celeste Martin

Picture of Jon Lovitz

Jon Lovitz

Ron Mills

Picture of Alyson Hannigan

Alyson Hannigan

Jessie Mills

Picture of Joseph Maher

Joseph Maher

Lucas Budlong

Picture of Seth Green

Seth Green

Fred Glass

Picture of Ann Prentiss

Ann Prentiss

The Voice of the Bag (voice)

Picture of Wesley Mann

Wesley Mann

Grady

Picture of Tony Jay

Tony Jay

Council Chief

Picture of Peter Bromilow

Peter Bromilow

Second in Command

Picture of Nina Henderson

Nina Henderson

Cashier

Picture of Harry Shearer

Harry Shearer

Carl Sagan (voice)

Picture of Adrian Sparks

Adrian Sparks

Dr. Morosini

Picture of Juliette Lewis

Juliette Lewis

Lexie

Picture of Tanya Fenmore

Tanya Fenmore

Ellen

Picture of Karen Haber

Karen Haber

Kristy

Picture of Amy Kirkpatrick

Amy Kirkpatrick

Kimberly

Picture of Suzie Plakson

Suzie Plakson

Tenley

Picture of Robert Benedetti

Robert Benedetti

Drill Sergeant

Picture of Jim Doughan

Jim Doughan

Party Guest

Picture of Jay McCaslin

Jay McCaslin

Party Guest

Picture of Jim Jackman

Jim Jackman

Party Guest

Picture of Kevin McDermott

Kevin McDermott

Olaf

Picture of Robyn Mandell

Robyn Mandell

Kat

Picture of Lisa Croisette

Lisa Croisette

Group Captain Winnek Wolfet

Picture of Sophia Bowen

Sophia Bowen

12th Navigational Command

Picture of Shea Bowen

Shea Bowen

12th Navigational Command

Picture of Gabi

Gabi

12th Navigational Command

Picture of Gina Raymond

Gina Raymond

12th Navigational Command

Picture of Susan Carlsberg

Susan Carlsberg

12th Navigational Command

Picture of Maxine Wasa

Maxine Wasa

Porn Actress

Picture of James Edward Veurink

James Edward Veurink

Porn Actor

Picture of Earl Boen

Earl Boen

Reverend

Picture of Michele Rogers

Michele Rogers

Skippy Budlong

Picture of Chere Rae

Chere Rae

Station Wagon Driver