Maggie Lockwood
Maggie Lockwood Season 3
Full Name
Maggie Lockwood
Emergency Department Charge Nurse at Gaffney Chicago Medical Center
Marital Status
Unnamed † (mother)
Unnamed (sibling)
Unnamed (niece)
Unnamed (cousin)
Denise (sister)
First seen
Last seen
Appeared in
41 episodes (see below)
Portrayed by

Maggie Lockwood is the charge nurse of the Emergency Department. She's extremely loyal to her job and those who work under her management. She runs the department with no nonsense and complete control.


Her mother was a midwife and she grew up around medical settings. She has a sibling and once took her niece to a Justin Bieber concert. She has a cousin who is a contractor.

Season One

Maggie is close friends with Natalie and April.

Season Two

In 2x03 Maggie's sister Denise had lost her vision and had an accident. Halstead learns that she has cancer. What was shocking about his diagnosis is that she has prostate cancer. Denise was actually born a male named Malcom and transitioned to female later. The doctor who did her surgery didn’t remove her prostrate.

Denise and Maggie bonded over this episode and work through some issues. Maggie missed her brother but accepted Denise the way she is now.

In 2x12, the officer who arrested her in 1x12 is brought in with severe injuries. Maggie is cautious over her approach, especially as the officer's husband and other police officers do not want her near her after the arrest. Seargent Platt asks Sharon to keep Maggie away. However, Maggie refuses, saying that she won't let this interfere with how she works but April ultimately takes over. As an organ donor, the officer is kept on life support until the compatible receivers are found. The husband eventually shows up before his wife is taken to surgery and taken off life support with a necklace that belonged to her, Maggie tells him he can stay with his wife through surgery.

Memorable Quotes

  • (to Connor): "Nothing happens in my kingdom that I don't take responsibility for."


Season 1 Appearances


















Season 2 Appearances
"Soul Care"

"Win Loss"

"Natural History"

"Brother's Keeper"

"Extreme Measures"

"Alternative Medicine"

"Inherent Bias"

"Free Will"

"Uncharted Territory"

"Heart Matters"

"Graveyard Shift"

"Mirror Mirror"

"Theseus' Ship"

"Cold Front"

"Lose Yourself"

"Prisoner's Dilemma"

"Monday Mourning"

"Lesson Learned"

"Ctrl Alt"

"Generation Gap"

"Deliver Us"

"White Butterflies"

"Love Hurts"


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