Chicago Med What You Don't Know (Season 4, Episode 5)
TV-14
TV Episode | 41 min | Drama

Chicago Med

What You Don't Know (Season 4, Episode 5)

TV-14

TV Episode | 41 min | Drama

Will must lie to Natalie; Ethan and April uncover compromising information about Emily's boyfriend; Ava isn't sure what to do with a patient who doesn't want treatment.

Showrunners

Diane Frolov | Andrew Schneider

Director

Donald Petrie

Writers

Michael Brandt (developed by) | Derek Haas (developed by) | Dick Wolf (created by) | Matt Olmstead (created by) & 4 more

Producers

Andrew Schneider | Joseph Sousa

Composer

Atli Örvarsson

Cinematographer

Lex duPont

Editor

Nick Berrisford

Casting Directors

Jenny Ravitz | Jonathan Strauss

Production Designer

Chloe Arbiture

See all filmmakers & crew (172)

Edit Released

Updated Oct 24, 2018

Release date

Oct 24, 2018 (United States)

Awards

Series awards

6 wins & 7 nominations

Contacts

+ Add

Become a member to see contact information for What You Don't Know.

Cast	+ Add Cast
33 cast members

Name	Known for
Nick Gehlfuss Will Halstead Will Halstead See fewer	Love & Mercy (2014)
Yaya DaCosta April Sexton April Sexton See fewer	Take the Lead (2006)
Torrey DeVitto Natalie Manning Natalie Manning See fewer	The Rite (2011)
Colin Donnell Connor Rhodes Connor Rhodes See fewer	Arrow (2012)
Brian Tee Ethan Choi Ethan Choi See fewer	Expats (2023)
Marlyne Barrett Maggie Lockwood Maggie Lockwood See fewer	Chicago Med (2015)
Norma Kuhling Ava Bekker Ava Bekker See fewer	The Joneses (2009)
S. Epatha Merkerson Sharon Goodwin Sharon Goodwin See fewer	Law & Order (1990)
Oliver Platt Daniel Charles Daniel Charles See fewer	The Three Musketeers (1993)
Jesse Lee Soffer Jay Halstead Jay Halstead See fewer	In Time (2011)
Arden Cho Emily Emily See fewer	Teen Wolf (2011)
C.S. Lee Bernard Kim Bernard Kim See fewer	East New York (2022)
Dennis Cockrum Ray Burke Ray Burke See fewer	Gangster Squad (2013)
Devin Ratray Tommy Burke Tommy Burke See fewer	Nebraska (2013)
Adam Petchel Tim Burke Tim Burke See fewer	Gotham (2014)
Anna Enger Ritch Agent Ingrid Lee Agent Ingrid Lee See fewer	The Haunting of Hill House (2018)
Molly Lloyd Tonya Griggs Tonya Griggs See fewer	Pinkalicious & Peterrific (2018)
Andre Teamer Keith Yates Keith Yates See fewer	The Playboy Club (2011)
Jamar Gilbert Max Yates (as Jalen Jamar Gilbert) Max Yates (as Jalen Jamar Gilbert) See fewer	Justified: City Primeval (2023)
Anzu Lawson Ashley Kim Ashley Kim See fewer	Manifest (2018)
Grace Ransom Neela Griggs Neela Griggs See fewer	Tears to A Glass Eye
Casey Tutton Nurse Monique Nurse Monique See fewer	Chicago Med (2015)
Lorena Diaz Nurse Doris Nurse Doris See fewer	Chicago Med (2015)
Amanda Marcheschi Nurse Dina Nurse Dina See fewer	Chicago Fire (2012)
Tonray Ho Leah Leah See fewer	My Best Friend's Wedding (1997)
Patricia Kane Charge Nurse Sandra Charge Nurse Sandra See fewer	Night Sky (2022)
Courtney Rioux Paramedic Courtney Paramedic Courtney See fewer	Chicago Med (2015)
Cesar Jaime Paramedic Cesar Paramedic Cesar See fewer	The Delmonic Interviews (2002)
Ron E. Rains Father Brady Father Brady See fewer	The Onion Film Standard (2013)
Hil Horvath Elodie (as Hillary Horvath) Elodie (as Hillary Horvath) See fewer	Utopia (2020)
Josephine Mo Jamie Kim Jamie Kim See fewer	Chicago Med (2015)
Elaine Marie Smith Trauma Patient (uncredited) Trauma Patient (uncredited) See fewer	I'm Having an Affair with My Wife
Ashland Thomas ED Doctor (uncredited) ED Doctor (uncredited) See fewer	Captive State (2019)