Empty wooden church pews in soft side light with a single candle burning

Start with the person, not the label

Before you choose rosaries and confession, decide who the character is: what they want, what they fear and what they would never admit. Faith then enters as one more force on that person. A character who prays because she is afraid behaves differently from one who prays because it is Tuesday.

Ask three questions. What did this character learn about God as a child? What does the character do when nobody is watching? What does the character believe and fail to do? The gap between the last two is where drama lives.

Cradle, convert, lapsed

Catholic characters come in many kinds. A cradle Catholic grew up with the Mass and the calendar, and often has strong feelings about both. A convert often knows the arguments better than the people around them and has a different relationship with the family they left. A lapsed or cultural Catholic may not attend Mass but can still feel the weight of a funeral or a feast day. Treat these as different people, not as a single type.

Region and background matter too. A Catholic in a Boston parish, a farming village in Poland and a city in the Philippines will have different customs, food and music.

Parish, home and calendar

Fiction feels true when it shows ordinary practice. Parishes have schedules, volunteers, a priest who is tired, a choir that is short of tenors. The year follows seasons such as Advent, Lent and Easter, and holy days and fasting rules shape the week. On Fridays in Lent, for example, Catholics are asked to abstain from meat, and Ash Wednesday and Good Friday carry fasting as well. Details like these make a scene specific without explaining it.

At home, faith may show up as a crucifix in a hallway, a prayer before meals, a saint's medal or an argument over whether to go to church at Christmas.

Sacraments and details to check

The Church has seven sacraments, and writers most often meet baptism, first communion, confession, marriage and funerals. Check the details you use. A priest bound by the seal of confession may not reveal what he hears, which is a gift to plot and also a limit that cannot be ignored. An annulment is a declaration that a valid marriage never existed, which is not the same as a divorce, and the process is slow.

Titles also trip up writers: a priest is addressed as Father, and a bishop has his own forms of address. Read a recent parish bulletin or attend a Mass if you can. A single hour in a pew can supply more detail than a week of research.

Stereotypes to avoid

Common clichés are the scolding nun, the guilt-ridden teenager, the scandal-only priest and the saint who never doubts. Real people mix kindness with failure. If a character is hypocritical, give a reason that fits the story instead of using faith as shorthand for hypocrisy. If a character is devout, let their faith cost something.

Finally, ask a Catholic reader to check the manuscript, and ask someone who disagrees with the Church to read it too. Between them they will catch both the false notes and the preaching. For the wider craft, read how to write Christian fiction that does not preach.