Robin Charles is an epidemiologist at Chicago Med. She was falsely diagnosed with schizophrenia but it was later discovered to have an organic cause; A benign mediastinal teratoma.
Robyn Charles is the daughter of Daniel Charles and one of his ex-wives, though she has a strained relationship with her father. Through her father she has a younger half-sister, Anna.
First appeared in season 2 episode 4 "Brother's Keeper"