Diona Reasonover

Detroit's Rhythm in Her Blood

Diona Reasonover was born in Detroit and learned to handle comedic timing long before stepping onto a national television set. Her first serious steps came with the improv group The Second City. There she understood that humor doesn't depend on luck but on technical precision.

That precision opened the doors to Los Angeles.

In 2011, she joined a screenwriting training program at NBC. That experience changed the way she reads scripts, because she learned to spot the seams in every scene. But her real break with audiences came with the series Clipped in 2015.

She played Charmaine Eskowitz for ten episodes. The series didn't stay on air for long, but it got casting directors to take notice of her name. The industry noticed her ability to deliver complex lines with astonishing ease.

The challenge of replacing a legend

Joining a machine as well-oiled as NCIS intimidates anyone. In 2018, the actress was tasked with playing Kasie Hines after the departure of a character who had been on screen for fifteen years. She did not try to imitate her predecessor.

She preferred to build a scientist with different nuances and a body language of her own. The pressure from the series' fans was real, because audiences of this kind of fiction tend to be conservative about casting changes.

The audience ended up accepting the handover.

During season 16, her character went from guest star to a regular contract. In 2020, the production had to adapt to very strict health protocols that limited physical contact between actors. Reasonover used that distance to strengthen the more analytical side of her role.

Scripts, Sweat and Training

Before becoming a familiar face in prime time, she worked as a writer for Sarah Silverman. In 2017, she wrote several episodes of I Love You, America. That job required her to keep up with U.S. political and social news at an astonishing pace.

She also worked on the writing team for Adam Ruins Everything. Her training in classical theater at Oberlin College lets her go from quick jokes to police drama without missing a beat. So her career is no stroke of luck.

The recording studio became her refuge.

In 2021, she lent her voice to the animated series The Harper House. Voice work demands a different kind of energy, because the whole weight of the performance rests on vocal modulation. By 2024, she had recorded more than 130 episodes in the criminal investigation franchise.

Her production contract stipulates shooting days that often exceed twelve hours at the studios in Santa Clarita. The production uses Arri Alexa cameras to capture the visual texture of the labs where most of the storyline takes place.