Donald Sage Mackay

Actor 1993–2027 (34 year career)

7.1 avg rating

Highest Rated

House

2004 · as Neil

8.6

Malcolm in the Middle

2000 · as Man

8.5

The West Wing

1999 · as Ellis

8.3

Known For

Film

Red, White & Royal Blue

Jeffrey Richards

Film

Nuremberg

Senator William Fulbright

Film

The Great Escaper

Nathan

Film

The Swan Princess: The Mystery of the Enchanted Kingdom

Jean-Bob (voice)

Film

House

Neil

Film

Malcolm in the Middle

Man

Film

Play the Game

Retirement Home Director

Film

Modern Family

George

Filmography

Acting (40)

Movies (9)

Animal Friends

2027 Upcoming

as John Fitzgerald

Jan 21

Nuremberg

2025

as Senator William Fulbright

7.5

Mystery Island: House Rules

2025

as De. Stanley Wellington

6.8

Red, White & Royal Blue

as Jeffrey Richards

The Great Escaper

as Nathan

The Good Mother

as Bob

Play the Game

as Retirement Home Director

5.8

The Swan Princess: The Mystery of the Enchanted Kingdom

1998

as Jean-Bob (voice)

6.0

A Colt Is My Passport

as Wilson

Television (31)

Going Dutch

as General Gus King

The Regime

as Richard Kaiser

Eric

as Jerry

The Following Events Are Based on a Pack of Lies

as Norm Niedecker

Wreck

as Henry Allan

Cell 8

as Pedersen

Alex Rider

as General Lomis

Treadstone

as Greg Sanders

Tom Clancy's Jack Ryan

2018

as CJCS Jeff Maguire

7.7

Masters of Sex

2013

as Prosecutor John Watson

Elementary

as Ben

Blue Bloods

as Lt. Mike Collier

Modern Family

as George

The Good Wife

as Mike Pedrano

The Amazing Mrs. Novak

Mad Men

as Dr. Gosman

Weeds

as TSA Agent Warren

House

as Neil

NCIS

as Kerry Killmartin

What I Like About You

as Super

Scrubs

as Dr. Page

According to Jim

as Greg

Malcolm in the Middle

as Man

The District

as Reporter #1

The West Wing

as Ellis

Providence

as Officer Duncan

The Practice

as Howard McGowan

7th Heaven

as Host

JAG

as Pilot

as Detective Lash

Frasier

as Eduardo