Some of the actresses who star in Call The Midwife don't actually believe in God in real-life.
Pam Ferris, Jenny Agutter and Judy Parfitt all play nuns in the BBC One series, but revealed that they're atheists.
Judy who plays Sister Monica Joan explained to The Sun newspaper's TV Biz column: "I'm against organised religion. It's caused more trouble than anything else in the world.
"How can these people go around saying their terrible actions are in the name of God? It's a joke."
Jenny stars as Sister Julienne and added: "It's very hard to have a faith when you see all the terrible things that are going on in the world."
66-year-old Pam is Sister Evangelina on-screen, and admits she has trouble "pretending" there's something other than reality.
"I am an atheist. I have enough trouble dealing with reality as I see it, observe it and feel it, without pretending there's another layer that we all have to agree on."
Asked if her ability to play a nun on the show is affected by her beliefs, she said: "How do I balance being an atheist and playing a nun?
"Well, I don't have to be a murderer to commit a murder on screen!"
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