Molly Shannon
Mary Katherine Gallagher
Will Ferrell
Sky Corrigan / Jesus
Mark McKinney
Father Ritley
Donna Hanover
Mrs. Corrigan
Mallory Margel
Little Mary
Deirdre McCloskey
Rosemary Gallagher
David Warrack
Father David
Aidan Kelly
Thornton Gallagher
Robert Clark
Little Boy Slater
Ariel Manson-Wagner
Reporter
Sal Scozzari
Special Ed Kid
Christina Gordon
Special Ed Kid
David Meinke
Special Ed Kid
Christine Nowland
Cheerleader
Carole Mackereth
Cheerleader
Michael McCloskey
Shamus O'Shea
Blake Brooker
Man with Cake
Joanna Bennett
Student (uncredited)
Gabriel Burrafato
Todd (uncredited)
Phil Crowley
Etiquette Record (voice) (uncredited)
Spencer Humm
Choral Singer (uncredited)
Fraser McGregor
Bike Boy (uncredited)
April Morgan
Dancer (uncredited)
Jonathan Gabriel Robbins
Tom, Whose Dad Is Dead (uncredited)
Jason Sehorn
Man in Pink Tutu (uncredited)
Jean Howell
Moira McDaniels
