Acting
Andrew Duggan (December 28, 1923 – May 15, 1988) was a character actor. Description above from the Wikipedia article Andrew Duggan, licensed under CC-BY-SA, full list of contributors on Wikipedia.
The Fugitive
Falcon Crest
Bonanza
Have Gun, Will Travel
M*A*S*H
Mannix
Wagon Train
Mission: Impossible
The Alfred Hitchcock Hour
Charlie's Angels
The Virginian
Ironside
The F.B.I.
Hawaii Five-O
Maverick
Hart to Hart
Cheyenne
Robert Montgomery Presents
Dr. Kildare
The Big Valley
Matinee Theater
Cannon
Highway to Heaven
The Philco Television Playhouse
Medical Center
The Defenders
Lou Grant
Lawman
Remington Steele
The Invaders
Gunsmoke
Hawaiian Eye
Barnaby Jones
Matt Houston
Run for Your Life
Switch
77 Sunset Strip
Kraft Suspense Theatre
F Troop
Hardcastle and McCormick
The Streets of San Francisco
Lancer
Vega$
12 O'Clock High
The Bionic Woman
Ghost Story
Wonder Woman
Banacek
The Great Adventure
Judd for the Defense
Arrest and Trial
McMillan & Wife
Suspicion
CHiPs
Tombstone Territory
I Spy
The Lieutenant
Wire Service
Cimarron Strip
The Roaring 20's
Rich Man, Poor Man
Bourbon Street Beat
Barbary Coast
The Dakotas
The Further Adventures of Ellery Queen
The Manhunter
Once an Eagle
The Eddie Capra Mysteries
Lucas Tanner
Backstairs at the White House
Schlitz Playhouse of Stars
The Swiss Family Robinson
Kung Fu
Attack on Terror: The FBI vs. the Ku Klux Klan