In ‘High Potential,’ Kaitlin Olson Gets Smart

Earlier this month, the actress Kaitlin Olson was in her Los Angeles kitchen slicing a lemon.

“I was really cutting it hard,” she said. “I put 100 percent of my effort into it.”

The knife slipped, nearly severing her pinkie, which explained why, on a morning a few days later in Manhattan, Olson, 49, had accessorized her black silk blouse and black pants with a black finger splint. (She also wore an array of diamonds, one the size of a kumquat.) The look was working. A waiter asked if she was in town for fashion week.

There are few things that Olson — tall and emphatically blond, with screwball energy — does lightly. As concerns comedy, physical stunts and also apparently cooking, her approach is full contact. On the set of “It’s Always Sunny in Philadelphia,” the cheeky FX comedy she has co-starred in for nearly 20 years, she has broken her foot, slashed open her calf and suffered at least one possible concussion. “Definitely worth it,” she said of the scene.

This wasn’t her first food-prep injury, and she skipped the emergency room. She didn’t have the time. In addition to “Sunny,” she is a guest actor on the HBO show “Hacks” and the star of a new ABC procedural, “High Potential,” in which she plays a cleaning woman with savant-like tendencies who consults for the police. It premieres on Tuesday.

While it is not Olson’s first series lead (that would be the Fox comedy “The Mick”) or her only chance to flaunt her aptitude for drama (see also: “Hacks”), “High Potential” showcases her dizzy, daffy, sardonic gifts. Which Olson appreciates.