John Duff is an actor, known for The Rundown (2003), Race to Witch Mountain (2009) and Hit and Run (2012).
Anger Management - Season 4
Anger Management - Season 3
Criminal Minds - Season 10
Criminal Minds - Season 1
The Lincoln Lawyer - Season 1
Angel - Season 3
Teen Wolf - Season 5
Teen Wolf - Season 3
Race to Witch Mountain
The Debt Collector
Angel - Season 5
Teen Wolf - Season 6
Teen Wolf - Season 2
CHIPS
Blood: The Last Vampire
The Rundown
Hit and Run
Anger Management - Season 1
Anger Management - Season 2
Teen Wolf - Season 1
The Game Plan
Bright
Angel - Season 2
Angel - Season 4
The Lincoln Lawyer - Season 2
Angel - Season 1
Teen Wolf - Season 4
The Secrets of Emily Blair