Acting

Katherine Mallen Kupferer

Born November 23, 2007 · Chicago, Illinois, USA (age 18)

Born to theatrical parents, Katherine Mallen Kupferer made her professional stage debut in Chicago Shakespeare Theater's acclaimed production of Gypsy and her major motion picture debut in Steve McQueen's Widows. Most recently, she can be seen as Gretchen in Lionsgate's long-anticipated film adaptation of Judy Blume's beloved classic Are You There God, It's Me, Margaret.

Known For

Widows

MovieDramaCrime

A police shootout leaves four thieves dead during an explosive armed robbery attempt in Chicago. Their widows have nothing in common except a debt left behind by their spouses' criminal activities. Hoping to forge a future on their own terms, they join forces to pull off a heist.

Are You There God? It's Me, Margaret.

Are You There God? It's Me, Margaret. · 2023

Are You There God? It's Me, Margaret.

MovieComedyDrama

When her family moves from New York City to New Jersey, an 11-year-old girl navigates new friends, feelings, and the beginning of adolescence.

Ghostlight

Ghostlight · 2024

MovieComedyDrama

When melancholic construction worker Dan finds himself drifting from his wife and daughter, he discovers community and purpose in a local theater's production of Romeo and Juliet. As the drama onstage starts to mirror his own life, he and his family are forced to confront a personal loss.

Mouse

MovieDramaComedy

Callie and Minnie’s relationship is suddenly upended at the start of the summer before their senior year of high school. Left rudderless without her charismatic best friend, Minnie starts to form a complicated friendship with Callie’s mother.

They Rescue Horses, Don’t They?

They Rescue Horses, Don’t They? · 2025

They Rescue Horses, Don’t They?

In an adult world wrecked by opiate addiction, a high school horse rescuer seeks revenge on the animal who hurt her friend.

Fools

MovieDramaComedy

Two strangers brush hands on a train and move in together days later, fabricating the history of their love as they go along.

Filmography

Sort

Widows

MovieDramaCrime

A police shootout leaves four thieves dead during an explosive armed robbery attempt in Chicago. Their widows have nothing in common except a debt left behind by their spouses' criminal activities. Hoping to forge a future on their own terms, they join forces to pull off a heist.

Gun Daughter

Are You There God? It's Me, Margaret.

Are You There God? It's Me, Margaret. · 2023

Are You There God? It's Me, Margaret.

MovieComedyDrama

When her family moves from New York City to New Jersey, an 11-year-old girl navigates new friends, feelings, and the beginning of adolescence.

Gretchen Potter

Ghostlight

Ghostlight · 2024

MovieComedyDrama

When melancholic construction worker Dan finds himself drifting from his wife and daughter, he discovers community and purpose in a local theater's production of Romeo and Juliet. As the drama onstage starts to mirror his own life, he and his family are forced to confront a personal loss.

Daisy

Mouse

MovieDramaComedy

Callie and Minnie’s relationship is suddenly upended at the start of the summer before their senior year of high school. Left rudderless without her charismatic best friend, Minnie starts to form a complicated friendship with Callie’s mother.

Minnie Dunn

They Rescue Horses, Don’t They?

They Rescue Horses, Don’t They? · 2025

They Rescue Horses, Don’t They?

In an adult world wrecked by opiate addiction, a high school horse rescuer seeks revenge on the animal who hurt her friend.

Aubrey

Fools

MovieDramaComedy

Two strangers brush hands on a train and move in together days later, fabricating the history of their love as they go along.

Vera’s daughter