| What You Don't Know... | |
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| Season: | 4 |
| Episode: | 5 |
| Original airdate: | October 24, 2018 |
| Written by: | Stephen Hootstein |
| Directed by: | Donald Petrie |
| Episode chronology | |
| Previous episode: | Backed Against the Wall |
| Next episode: | Lesser of Two Evils |
Contents
Summary
When things become complicated, Will is forced to lie to Natalie. Ethan and April find out some compromising information about Emily's boyfriend and Ava is unsure of what to do with a patient who is refusing treatment.
Cast
Main Cast
- Nick Gehlfuss as Doctor Will Halstead
- Yaya DaCosta as Nurse April Sexton
- Torrey DeVitto as Doctor Natalie Manning
- Colin Donnell as Doctor Connor Rhodes
- Brian Tee as Doctor Ethan Choi
- Marlyne Barrett as Charge Nurse Maggie Lockwood
- Norma Kuhling as Doctor Ava Bekker
- S. Epatha Merkerson as Chief Administrator Sharon Goodwin
- Oliver Platt as Doctor Daniel Charles
Guest Stars
- Jesse Lee Soffer as Detective Jay Halstead
- Arden Cho as Emily Choi
- C.S. Lee as Bernard Kim
- Dennis Cockrum as Ray Burke
- Devin Ratray as Tommy Burke
- Adam Petchel as Tim Burke
- Anna Enger Ritch as FBI Special Agent Ingrid Lee
- Molly Lloyd as Tonya Griggs
- Andre Teamer as Keith Yates
- Jalen Jamar Gilbert as Max Yates
- Anzu Lawson as Ashley Kim
- Grace Ransom as Neela Griggs
Co-Stars
- Casey Tutton as Nurse Monique Lawson
- Lorena Diaz as Nurse Doris
- Amanda Marcheschi as Nurse Dina Garston
- Tonray Ho as Nurse Leah
- Patricia Kane as Nurse Sandra Kent
- Courtney Rioux as Paramedic Courtney
- Cesar Jaime as Paramedic Cesar
- Ron E. Rains as Father Brady
- Hillary Horvath as Elody
- Josephine Mo as Jamie Kim
Crew
- Dick Wolf as Creator
- Matt Olmstead as Creator
- Michael Brandt as Developer
- Derek Haas as Developer
- Dick Wolf as Executive Producer
- Diane Frolov as Executive Producer
- Andrew Schneider as Executive Producer
- Michael Waxman as Executive Producer
- Matt Olmstead as Executive Producer
- Michael Brandt as Executive Producer
- Derek Haas as Executive Producer
- Arthur W. Forney as Executive Producer
- Peter Jankowski as Executive Producer
- Stephen Hootstein as Co-Executive Producer
- Eli Talbert as Co-Executive Producer
- Jeffrey Drayer as Co-Executive Producer
- Carla Corwin as Producer
- Joseph Sousa as Producer
- Jonathan Strauss as Co-Producer
- Safura Fadavi as Co-Producer
- Daniel Sinclair as Co-Producer
- Leigh Cousins as Associate Producer
- Audra Allis as Associate Producer
- Lex DuPont as Director Of Photography
- Chloe Arbiture as Production Designer
- Nick Berrisford as Editor
- Atli Örvarsson as Music
- Jonathan Strauss as Casting
- Jenny Ravitz as Casting
- Marisa Ross as Casting
- Christal Karge as Casting
- Danny Weiss as Executive Story Editor
- Meridith Friedman as Story Editor
Background information and Notes
Gallery
| Chicago Med season 4 | |
|---|---|
| Episodes | Be My Better Half • When to Let Go • Heavy is the Head • Backed Against the Wall • What You Don't Know • Lesser of Two Evils • The Poison Inside Us • Play by My Rules • Death Do Us Part • All the Lonely People • Who Can You Trust • The Things We Do • Ghosts in the Attic • Can't Unring That Bell • We Hold These Truths • Old Flames, New Sparks • The Space Between Us • Tell Me the Truth • Never Let You Go • More Harm Than Good • Forever Hold Your Peace • With a Brave Heart |
| Other Seasons | Season 1 • Season 2 • Season 3 • Season 5 • Season 6 • Season 7 |
