Martyrs

Troian Bellisario

Lucie

Bailey Noble

Anna

Kate Burton

Eleanor

Caitlin Carmichael

Sam

Melissa Tracy

The Creature

Romy Rosemont

Mom

Toby Huss

Fenton

Elyse Cole

Young Anna

Ever Prishkulnik

Young Lucie

Blake Robbins

Dad

Taylor John Smith

Son

Lexi DiBenedetto

Daughter

Ivar Brogger

Priest

Michael Dempsey

Detective

Larry Rosenthal

Dr. Haseem

Matthew Jaeger

Blaze

Max Acosta-Rubio

Nic

DaJuan Johnson

Officer

Carissa Bazler

Orphan (uncredited)