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Portrait of Nick Gehlfuss

Nick Gehlfuss

Acting

Biography

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.

Born: January 21, 1985

Place of Birth: Cleveland, Ohio, USA

Known For

Poster for Chicago P.D.
TV

Chicago P.D.

8.4
Poster for Chicago Fire
TV

Chicago Fire

8.4
Poster for Chicago Med
TV

Chicago Med

8.3
Poster for It's Always Sunny in Philadelphia
TV

It's Always Sunny in Philadelphia

8.3
Poster for Shameless
TV

Shameless

8.2
Poster for Person of Interest
TV

Person of Interest

8.1
Poster for The Newsroom
TV

The Newsroom

8.1
Poster for Rizzoli & Isles
TV

Rizzoli & Isles

7.9
Poster for Constantine
TV

Constantine

7.8
Poster for Longmire
TV

Longmire

7.7

Filmography

2026
CIA

as Bill Goodman

2016
Equity

as Gabe

2015
Chicago Med

as Dr. Will Halstead

2015
The Mystery of Matter: Search for the Elements

as Glenn Seaborg

2015
Love & Mercy

as Bruce Johnston

2014
Constantine

as Thomas Galen

2014
Murder in the First

as Mark Strauss

2014
Chicago P.D.

as Will Halstead

2012
Chicago Fire

as Will Halstead

2012
The Newsroom

as Ross Kessler

2012
Longmire

as Cameron Maddox

2011
Person of Interest

as Jack Hughes

2011
Shameless

as Robbie Pratt

2011
Sam Steele and the Junior Detective Agency

as Martinson Radio

2010
Rizzoli & Isles

as Jack Roberts

2010
The Glades

as Randy Dillard

2009
The Good Wife

as Jesse

2007
Army Wives

as Sergeant Joe Corey

2005
It's Always Sunny in Philadelphia

as Sean

----
Butterfly in the Typewriter

as Joel Fletcher