
Acting
George Peabody Macready, Jr. (August 29, 1899 – July 2, 1973) was an American stage, film, and television actor often cast in roles as polished villains.
Description above from the Wikipedia article George Macready, licensed under CC-BY-SA, full list of contributors on Wikipedia.

The Return of Count Yorga
as Professor Rightstat

Tora! Tora! Tora!
as Cordell Hull

Count Yorga, Vampire
as Narrator (voice)

Night Gallery
as Hendricks

The Young Lawyers
as Jay Spofford

Daughter of the Mind
as Dr. Frank Ferguson

Fame Is the Name of the Game
as Glenn Howard

The Great Race
as General Kuhster

The Human Duplicators
as Prof. Vaughn Dornheimer
Asylum for a Spy
as Graham Jutland

Lancer
1 ep.

Get Smart
as Mr. Fitzmaurice · 1 ep.

Run for Your Life
as David Courtney (uncredited) · 1 ep.

The Man from U.N.C.L.E.
as Zorgon Gurnius · 1 ep.
Profiles in Courage
as General Fairchild · 1 ep.

Peyton Place
as Martin Peyton · 460 ep.
Bob Hope Presents the Chrysler Theatre
as Graham Justland · 2 ep.

The Outer Limits
as Dr. Marshall · 1 ep.

The Great Adventure
as Dr. Keen · 1 ep.

The Dakotas
1 ep.
Seven Days in May
1964