Acting
Matthew John Armstrong is an actor.
The Mentalist
2008
House
2004
Supernatural
2005
NCIS
2003
Bones
American Horror Story
2011
CSI: Miami
2002
Heroes
2006
Scandal
2012
Numb3rs
The Shield
Crossing Jordan
2001
Private Practice
2007
Justified
2010
Perception
American Dreams
Body of Proof
Family Law
1999
Raising the Bar
Threshold