The biggest star may be Bill Murray, but the entire Murray family could act, including one who became a nun, Sister Nancy Murray.

Sister Nancy is visiting Alabama this week for the first time to perform her one-woman show about St. Catherine of Siena. She did it at Springville Presbyterian Church on Wednesday night, and will perform again at 7 on Friday night at the Benedictine Sisters Retreat Center in Cullman.

"It's basically storytelling," Sister Nancy said in an interview with AL.com. ""It's a very unifying story: It's family, faith, interactions. It's about people who sometimes hear a different drummer. People of all ages connect. There are people who loved her and hated her, who were threatened by her ability to mediate and bring peace."

Sister Nancy first wrote and performed the show in 2000, then started getting offers from across the country. She has since performed it more than 785 times in 40 states including Alaska and countries including Scotland, Australia, Puerto Rico, Indonesia and the Philippines.

"I'm doing 30 or 40 a year," she said. "Some years it was up to 70. I've done Catherine on five continents."

She also wrote a one-woman show about another nun, Sister Dorothy Strang, an activist for the poor who was killed in Brazil in 2005 by two armed men for her activism on behalf of the poor that angered developers in the Amazon valley.

"When you do Catherine of Siena you don't have to worry about running into relatives," Sister Nancy said. "Sister Dorothy was one of nine children. I meet her relatives everywhere."

Catherine of Siena lived from 1347 to 1380 and helped bring the papacy from France back to Rome, while brokering peace among the Italian city-states.

"Catherine, she's my main girl," Sister Nancy said. "I play 14 different characters in the story of her life. I start by saying, 'Did you bring your imagination?' It's very playful."

Sister Nancy based the story of St. Catherine of Siena on more than 400 of her letters that have been translated and published. "I said, 'Oh my God, there is a sense of humor and feistiness I never knew about.' I can relate to this."

Sister Nancy, 68, is one of nine Murray children, the third oldest. Bill Murray, two years younger than her, has been to her show.

"He's seen it a few times," she said. "He often gets copies of articles about me sent to him, which is funny because I've been getting people sending me articles about him for years."

Bill Murray is scheduled to receive the Mark Twain Prize for American Humor on Sunday at the John F. Kennedy Center for Performing Arts in Washington, D.C. All the siblings plan to attend.

"We're all going to be there Sunday when Billy gets the Mark Twain Prize," Sister Nancy said.

Sister Nancy's younger brother, actor Bill Murray, is scheduled to receive the Mark Twain Prize on Sunday, Oct. 23, 2016, at the John F. Kennedy Center for Performing Arts.

Because of her Friday night show in Alabama, Sister Nancy will miss some of the preliminary events on Saturday.

"I'll miss the tour of the White House, which I guess will be led by the Obamas, and dinner at the Supreme Court," she said. "I will be there all day Sunday."

The event will be taped to air Oct. 28 on PBS, she said.

Of course, her brother Bill was a little worried about possibly missing a baseball game. The Chicago Cubs were in the National League Championship Series, and he's their most famous fan. The Cubs and the Dodgers were tied at 2 games to 2, and a possible Game 7 was scheduled for Wrigley Field on Sunday. But the Cubs clinched the pennant in Game 6 and go on to the World Series to face the American League Champion Cleveland Indians. The Cubs have not played in the World Series since 1945 and haven't won it since 1908.

"There's a big conflict in the family," Sister Nancy said during the playoffs. "I don't know how long the series will go. I think they are worried he will skip it if the Cubs are playing. He'd think about it. He's that serious."

Eight of the nine children are serious Cubs fans, Sister Nancy said. Their brother Ed, a holdout, seems to be coming around, she said.

"He's a convert," she said. "Ed sent us a cartoon of a guy with white hair with a Cubs hat on."

Sister Nancy Murray arrived in Alabama on Oct. 18 and will be leaving Saturday to get to Washington, D.C., in time to see her younger brother, Bill Murray, receive the Mark Twain Prize for American Humor on Oct. 23.

Sister Nancy said she was the first in the family to be involved in acting. The Murray kids staged plays in their basement, or in the garage during the summer, and charged admission. She was Bill's first director.

"He was St. Joseph in Basement Productions," she said. "We used to do plays and productions in the basement. In the summertime it was in the garage. That would include neighbor kids."

Sister Nancy went on to be a drama teacher and also taught preaching at Loyola University in Chicago for 10 years.

She considered leaving her religious order, the Adrian Dominicans, in 1967 after her father died. Her siblings insisted she continue her work as a nun.

Her older brother, Brian Doyle-Murray, moved back home to help support the family and ended up getting an apartment in Chicago near the Second City comedy improvisation group's theater. He joined, and later brought in younger brother Bill.

Brian co-wrote the 1980 comedy movie "Caddyshack" with Harold Ramis and Doug Kenney, and the movie featured roles for Bill and Brian and another brother, John. Brother Ed, a golfer who helped inspire the story, had a cameo, Sister Nancy said.

"Brian was always a creative storyteller," Sister Nancy said. "Our dinner table was the first stage. Brian could get us all to laugh. To get our father to laugh was the goal. At the dinner table Brian would be telling all these stories. Brian was definitely someone who observed people. He had a storytelling ability that was really excellent. He went more into writing."

Bill and Brian moved to New York about 1975 and became involved with "Saturday Night Live." Brian went on to open up a Second City comedy troupe in Toronto, and that first cast included Dan Akroyd, Gilda Radner and John Candy, who all joined the "Saturday Night Live" cast.

It all spun out of the comedy at the Murray family dinner table, Sister Nancy said. She does her part with her portrayal of Catherine of Siena, which brings alive the legacy of a medieval nun.

"There's nothing like a live performance," Sister Nancy said.