John Hartmann
Actor
Active 1990–present
Filmography
The Pitt (2025) - William Booker9-1-1: Lone Star (2020) - Dr. NelsonBombshell (2019) - Male InterviewerFor All Mankind (2019) - Administrator Richard TrulyUnbelievable (2019) - Donald HughesThe Morning Show (2019) - InterviewerGLOW (2017) - Stanford DadThe Good Place (2016) - BartBetter Call Saul (2015) - Mr. PearsonLie to Me (2009) - Frank StollNCIS: Los Angeles (2009) - Bryan ColsterMad Men (2007) - Jeff ArbusThe Office (2005) - KendallBones (2005) - Mr. GoughMedium (2005) - Forensics SpecialistBoston Legal (2004) - Tom RaulstonNCIS (2003) - DOD IG Inspector Richard SullivanArrested Development (2003) - CEOMonk (2002) - Mr. HoffmanCurb Your Enthusiasm (2000) - Greene's NeighborLaw & Order: Special Victims Unit (1999) - Clerk · Arraignment Clerk · Clerk #2 · Court ClerkThe West Wing (1999) - Floor ManagerRansom (1996) - Agent Lambert (as John Richard Hartmann)Law & Order (1990) - Court Clerk · Police Property Clerk