Actor
Donald Sage Mackay
Notable work
8.6House (2004)
as Neil
8.5Malcolm in the Middle (2000)
as Man
7.9Modern Family (2009)
as George
7.6NCIS (2003)
as Kerry Killmartin
7.6Elementary (2012)
as Ben
7.7Tom Clancy's Jack Ryan (2018)
as CJCS Jeff Maguire
7.9Red, White & Royal Blue (2023)
as Jeffrey Richards
8.1Mad Men (2007)
as Dr. Gosman
7.6Nuremberg (2025)
as Senator William Fulbright
7.5Weeds (2005)
as TSA Agent Warren
7.8Blue Bloods (2010)
as Lt. Mike Collier
7.8ER (1994)
as Detective Lash
Often works with
Full filmography · 38
Going Dutch
as General Gus King
20255.6
Eric
as Jerry
20246.9
The Regime
as Richard Kaiser
20246.1
The Following Events Are Based on a Pack of Lies
as Norm Niedecker
2023
Wreck
as Henry Allan
20225.8
Cell 8
as Pedersen
2022
Alex Rider
as General Lomis
20207.8
Treadstone
as Greg Sanders
20197.1
Tom Clancy's Jack Ryan
as CJCS Jeff Maguire
20187.7
Masters of Sex
as John Watson
20137.1
Elementary
as Ben
20127.6
Blue Bloods
as Lt. Mike Collier
20107.8