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