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Actor · 15 credits
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.

CIA
2026
Bill Goodman

The Mystery of Matter: Search for the Elements
2015
Glenn Seaborg

Constantine
2014
Thomas Galen

Murder in the First
2014
Mark Strauss

Chicago P.D.
2014
Will Halstead

Chicago Fire
2012
Will Halstead

Longmire
2012
Cameron Maddox

Shameless
2011
Robbie Pratt

Rizzoli & Isles
2010
Jack Roberts

The Glades
2010
Randy Dillard

The Good Wife
2009
Jesse