Mekia Cox (Undercovers)has joined the NBC medical drama Chicago Med as the oldest daughter of Dr. Charles (Oliver Platt).

According to THR Cox will play Robin Charles, an epidemiologist who follows her father into the medical profession. Robin is brought in to asses a difficult case and it further complicates her strained relationship with her father, who is the chief of the psychiatry department. This marks the first time a member of Dr. Charles’ family has appeared on the show. The first season introduced several family members of other series regulars, including April’s brother and Dr. Rhodes’ estranged father and sister. Dr. Will Halstead (Nick Gehlfuss) is the brother of Det. Jay Halstead (Jesse Lee Soffer), a core character on Chicago PD.

The actress starred in 90210, and has guest starred on numerous series such as Undercovers, Gotham, Almost Human, Grey’s Anatomy, and Modern Family.  She can be seen next in the upcoming second season of the ABC drama Secrets and Lies.

Chicago Med returns Thursday, Sept. 22 at 9 p.m. on NBC.