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.
Movies & TV Shows
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Shameless (2011) — Robbie Pratt
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Chicago P.D. (2014) — Will Halstead
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Chicago Fire (2012) — Will Halstead
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Person of Interest (2011) — Jack Hughes
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Constantine (2014) — Thomas Galen
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It's Always Sunny in Philadelphia (2005) — Sean
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Chicago Med (2015) — Dr. Will Halstead
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Love & Mercy (2015) — Bruce Johnston
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The Newsroom (2012) — Ross Kessler
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The Good Wife (2009) — Jesse
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Rizzoli & Isles (2010) — Jack Roberts
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Longmire (2012) — Cameron Maddox
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The Glades (2010) — Randy Dillard
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CIA (2026) — Bill Goodman
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Murder in the First (2014) — Mark Strauss
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Equity (2016) — Gabe
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Army Wives (2007) — Sergeant Joe Corey
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Sam Steele and the Junior Detective Agency (2011) — Martinson Radio
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The Mystery of Matter: Search for the Elements (2015) — Glenn Seaborg
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Butterfly in the Typewriter — Joel Fletcher