Early in her career, McCook had minor roles in television's
10 Things I Hate About You and
Glee, both filmed in 2009 and released in 2010. She acted in a five-episode arc of the
soap opera,
The Bold and the Beautiful, with her father, John, a series regular, in 2010. That year, McCook also played Natalie in the horror film,
Excision; and then once again joined her father in acting in the short film,
Christmas Without You. In 2013, she was in an episode of
Agents of S.H.I.E.L.D. and the following year in an episode of
Modern Family. McCook's character featured heavily in the web series,
Guidance, in its inaugural season (2016). She was in several episodes of
The Ranch in 2016–2018. Since 2019, McCook has appeared on the
Freeform network in the recurring role of court clerk, Rebecca, in season one of the
Good Trouble spin-off of
The Fosters TV show. ==Personal life==