Growing up in California, White Sox All-Star pitcher Lucas Giolito — the elder son of actress and artist Lindsay Frost and producer Rick Giolito — never had a stage role other than “Guard No. 3” in a fourth-grade play. Though he was creative, he never imagined his baseball career would intersect with his family’s work in the arts.

It does now.

In June, the Sox approached Frost to create a series of retro-themed art pieces, which were unveiled Tuesday at Guaranteed Rate Field.

“I was a little nervous about working with his team,” she said. “I didn’t want to overstep my bounds at all. I didn’t even say yes until I spoke with Lucas. I got ready and very carefully called him up and said, ‘I need to talk to you. I have this opportunity. They approached me.’ Right away, he said, ‘Oh, man, cool! Awesome! Do it!’ ”

Before becoming an actress, Frost had wanted to attend art school, but she decided on drama school instead. As Lucas and her younger son, Casey, approached their high school years, she felt being away on location for films and TV shows was less than ideal. So she began drawing, painting and creating again.

“[Lucas] inspired me to take that leap,” she said.

Sitting in the bleachers at Lucas’ games gave Frost a lot of time to sketch, draw and paint. Everywhere his baseball took her, the sketchbook came along.

One day, while Lucas was practicing, she sat in the car sketching hands — something she was struggling to get right. When practice ended, before she could share her dissatisfaction, Lucas got in the car and exclaimed, “Oh, wow, Mom, those are great!’ ”

“It’s the least I could do,” he said. “Egg her on and keep supporting her even when she was learning some of the basic things.”

In 2015, Frost began working with Art of the Game, a Los Angeles-based sports art and memorabilia company that has galleries at Dodger Stadium, Angel Stadium and Staples Center, where some of Frost’s pieces are now featured. Along with the art she has created for Art of the Game, her work includes landscapes, portraits, art of automobiles and “The MLB Collection,” which features hats from all 30 major-league teams.

Frost takes inspiration from baseball’s history and her connection to it. Giolito says it was only a matter of time before the Sox discovered what his mom was doing.

“It was inevitable,” he said.

After the Sox reached out to her, Frost had about two months to create five pieces — taking time out to fly to Cleveland to watch her son pitch in the All-Star Game in July. She spent much of her time researching the team’s history. Previously, she was only familiar with the 1919 Black Sox scandal.

“She might know a little bit more White Sox history than I do at this point,” Giolito said.

Three of her paintings commemorate Sox World Series victories in 1906, 1917 and 2005. The other two feature a vintage Sox hat and a bobblehead. All five will be on display in the Revolution Brewing taproom at the ballpark. At the end of the season, they’ll be auctioned to support White Sox Charities.

“For a period of time, we both worked for the same organization,” Giolito said. “That’s pretty cool.”