Cox went to Northwestern University,[1] where he met David Schwimmer along with six others who then went on to found Lookingglass Theatre Company in Chicago, Illinois.
Cox has worked on more than forty productions, including West, The Jungle, The Odyssey, Arabian Nights, The Master and Margarita, They All Fall Down, Summertime, Great Men of Science, as Algren (Joseph Jefferson Awards nomination) in Nelson Algren: For Keeps and a Single Day,[2][3] (which went on to be adapted for television in an Emmy-nominated co-production with WTTW), as Winston in 1984, as Quilp in The Old Curiosity Shop (Joseph Jefferson nomination), as Hook in Peter Pan: a play, Our Town, Black Diamond, Lookingglass Alice, "Big Lake, Big City", and “20,000 Leagues Under the Sea”.
During the summers, he and his wife, the stage manager Chris Freeburg, have worked at the Weston Playhouse Theatre in Vermont, where he has appeared in productions ranging from Chicago, Oklahoma!, and Urinetown, to Tartuffe, and Blithe Spirit.
Additionally, for the Playhouse, Cox served as co-director of their Young Company, in which capacity he directed two musical productions.
Cox's film and television acting credits include: Since You've Been Gone (Miramax), Chi-Girl, and Brotherhood (Showtime) Chicago Fire (NBC).