Donald Sage Mackay
Actor
Active 1993–present
Filmography
Nuremberg (2025) — Senator William FulbrightAnimal Friends (2027) — John FitzgeraldMystery Island: House Rules (2025) — De. Stanley WellingtonHouse (2004) — NeilMalcolm in the Middle (2000) — ManModern Family (2009) — GeorgeNCIS (2003) — Kerry KillmartinMad Men (2007) — Dr. GosmanRed, White & Royal Blue (2023) — Jeffrey RichardsTom Clancy's Jack Ryan (2018) — CJCS Jeff MaguireElementary (2012) — BenBlue Bloods (2010) — Lt. Mike CollierER (1994) — Detective LashThe West Wing (1999) — EllisFrasier (1993) — EduardoWeeds (2005) — TSA Agent WarrenThe Good Wife (2009) — Mike PedranoAlex Rider (2020) — General LomisJAG (1995) — PilotMasters of Sex (2013) — John WatsonScrubs (2001) — Dr. Page · DoctorTreadstone (2019) — Greg SandersEric (2024) — JerryAccording to Jim (2001) — Greg