Margaret Qualley

Sister Cathleen

Melissa Leo

Reverend Mother

Julianne Nicholson

Nora Harris

Dianna Agron

Sister Mary Grace

Lisa Stewart

Sister Genevieve

Morgan Saylor

Sister Evelyn

Liana Liberato

Sister Emily

Rebecca Dayan

Sister Emanuel

Eline Powell

Sister Candace

Chelsea Lopez

Sister Charlotte

Maddie Hasson

Sister Sissy

Denis O'Hare

Archbishop

Chris Zylka

Chuck Harris

Alyssa Brindley

Sister Kate

Hannah Renèe Jackson

Sister Anne

Marco St. John

Father Luca

Eliza Stella Mason

Cathleen, 7 Years Old

Bill Shick

Local Priest

Danny Vinson

Rob, Church Usher

Angela Fox

Sister Gloria

Neva Howell

Sister Eleanor

Sasha Mason

Cathleen, 12 Years Old

Peggy Walton-Walker

Nun Teacher

Ashley Bell

Sister Margaret

Rosemary Brown

Miss Williams

Gabe Beutel-Gunn

Nora's Boyfriend

Marshall Chapman

Sister Louisa

Lacy Hartselle

Sister Theresa (uncredited)

Kamryn Boyd

Blessed Sorrows Student (uncredited)

Adele Marie Pomerenke

Cathleen's Sister (uncredited)

Darla Pelton-Perez

Parent (uncredited)

Cecilia Wyle

Professed Nun (uncredited)

Joseph Wilson

Churchgoer (uncredited)

Anna Swiney

Blessed Sorrow's Student (uncredited)

Sydney Hoover

Blessed Sorrows Student (uncredited)

Kalista Dwyer

Cathleen's Sister (uncredited)

Julia Leigh

Blessed Sorrows Student (uncredited)

Laurie Pallotta

Professed Nun (uncredited)

Kaitlyn Williams

Cathleen's Sister (uncredited)

Melissa Nyenhuis

Wedding attendee (uncredited)