★ 8.2 
Acting
John Duerler
John Duerler is best known for Grey's Anatomy, How I Met Your Mother, Shameless and CSI: Crime Scene Investigation.
Biography
John Duerler is an actor and producer.
Known for
Filmography
- 2016DiceBus Driver
- 2013The Crazy OnesSecurity Guard
- 2011ShamelessOfficer Cody
- 2005Grey's AnatomyGrant
- 2005How I Met Your MotherHarlen Johnsen
- 2004EntourageBoom Operator
- 2000CSI: Crime Scene InvestigationCroft
- 1999SnoopsSecurity Guard
- 1997Ally McBealForeperson
- 1997The PracticeScott Gelson
- 1993Diagnosis: MurderHauler
Frequently asked questions
What movies and shows has John Duerler been in?
John Duerler is best known for Grey's Anatomy, How I Met Your Mother, Shameless and CSI: Crime Scene Investigation.
Updated: November 3, 2026 ·