Sissy Spacek as Mommy / Mama / Mom / Natasha

Anna Chlumsky as Elizabeth Martin

Aaron Michael Metchik as Jeremy Martin

Asher Metchik as Harry Martin

Merritt Yohnka as Mr. Leeby, the Principal

André Roussimoff as Circus Giant

Maureen Stapleton as Mrs. Cavour, the Gardener

Sean MacLaughlin as Edward, the Mommy-Market Manager

Nancy L. Chlumsky as Dr. Richardson

Fran Joseph as Ninja Mom

Catherine Paolone as Cookie Mom

Maria Fagan as Creative Mom

Jane Beard as Cleaning Mom

Eleni Schirmer as Karate Girl

David Gibbs as Fruit Vendor

Sammy Ross as Little Guy

Igor De Laurentiis as Boy in Black Jacket

Don Moss as Sobbing Boy

David O'Neil as Basketball Kid

Robbie Dresch as Boy in Striped T-Shirt

Mike Degaetano as Little Cookie Boy