Katherine Cunningham made her TV debut in 2010 in "Detroit 1-8-7," in which she played a blackjack dealer. Since then she's had multi-episode arcs in "The Playboy Club," "I Made America," and "The Mob Doctor." In 2012, she also had a four-episode arc in "Chicago Fire." Two years later, she secured a recurring role in the comedy-drama series "Mind Games," where she played the girlfriend of Steve Zahn's character (via IMDb).
From 2018 to 2020, Cunningham also enjoyed a recurring role in "Condor." A modern retelling of the Robert Redford film "Three Days of the Condor," the thriller series follows a CIA analyst whose colleagues in the research and development office are all suddenly murdered. The series starred Max Irons, Mira Sorvino, and the late William Hurt. Cunningham played Kathy, a former Tinder date of the young analyst played by Irons. "[Max] is so funny and so goofy," Cunningham said of her co-star (via Hollywood Junket). "He's very giving as a scene partner."
Elsewhere, Cunningham has racked up roles in a number of acclaimed series. Her credits include "Shameless," "NCIS," and "Grey's Anatomy." Still, Cunningham's character in "Yellowstone" remains her longest-running role to date. Per Cunningham, the job was much more than just another notch on her resume. In an emotional Instagram post, the actress detailed her experience leaving COVID lockdown and taking her family to the "Yellowstone" set, where her infant daughter, May, joined the cast. "I remember being deeply sad, in mourning for the life I knew," Cunningham wrote. "Then 'Yellowstone' called and asked if my family and I wanted to come to Montana for a month. When we got there, it felt like taking a weighted blanket off our chests."
