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Nicholas Alan Gehlfuss is an American actor, known for his starring role as Dr. Will Halstead in NBC's medical drama Chicago Med. He appeared as Robbie Pratt in the fourth season of Showtime's comedy-drama Shameless.

Known For

0.0

Bill Goodman

CIA

2026

5.6

Gabe

Equity

2016

8.3

Dr. Will Halstead

Chicago Med

2015

7.3

Glenn Seaborg

The Mystery of Matter: Search for the Elements

2015

7.1

Bruce Johnston

Love & Mercy

2015

7.8

Thomas Galen

Constantine

2014

5.8

Mark Strauss

Murder in the First

2014

8.4

Will Halstead

Chicago P.D.

2014

8.4

Will Halstead

Chicago Fire

2012

8.1

Ross Kessler

The Newsroom

2012

Credits

CIA

as Bill Goodman

2026

0.0

Equity

as Gabe

2016

5.6

Chicago Med

as Dr. Will Halstead

2015

8.3

The Mystery of Matter: Search for the Elements

as Glenn Seaborg

2015

7.3

Love & Mercy

as Bruce Johnston

2015

7.1

Constantine

as Thomas Galen

2014

7.8

Murder in the First

as Mark Strauss

2014

5.8

Chicago P.D.

as Will Halstead

2014

8.4

Chicago Fire

as Will Halstead

2012

8.4

The Newsroom

as Ross Kessler

2012

8.1

Longmire

as Cameron Maddox

2012

7.7

Person of Interest

as Jack Hughes

2011

8.1

Shameless

as Robbie Pratt

2011

8.2

Sam Steele and the Junior Detective Agency

as Martinson Radio

2011

4.8

Rizzoli & Isles

as Jack Roberts

2010

7.9

The Glades

as Randy Dillard

2010

6.9

The Good Wife

as Jesse

2009

7.6

Army Wives

as Sergeant Joe Corey

2007

7.5

It's Always Sunny in Philadelphia

as Sean

2005

8.3

Butterfly in the Typewriter

as Joel Fletcher

N/A

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