Mark Lenard was an actor, perhaps best known for his many roles in the Star Trek universe. Lenard played a Klingon, a Romulan, and a Vulcan in the original '60s Star Trek TV show, and memorably played Sarek, Spock's Vulcan father, in several Star Trek movies and later TV shows.
Star Trek: The Motion Picture
(Klingon Captain)
Star Trek III: The Search for Spock
(Ambassador Sarek)
Star Trek IV: The Voyage Home
(Sarek)
Star Trek VI: The Undiscovered Country
(Sarek)
The Greatest Story Ever Told
(Balthazar)
The Power and the Glory
Getting Married
(Mr. Bloom)
The Forgotten City of the Planet of the Apes
(Urko)
Outrage
(Mr. Chandler)
Noon Sunday
(Jason Cootes)
The Radicals
(Eberhard Hoffman)
Annie Hall
(Navy Officer)
Treachery and Greed on the Planet of the Apes
(Urko)
Life, Liberty and Pursuit on the Planet of the Apes
(Urko)
Hang 'em High
(Prosecutor)
Farewell to the Planet of the Apes
(Urko)
Back to the Planet of the Apes
(Urko)
Star Trek: The Next Generation - Unification
(Sarek (archive footage))
Planet of the Apes
(Urko)
In the Heat of the Night
Star Trek
(Sarek)
The Incredible Hulk
Star Trek: The Next Generation
(Sarek)
Otherworld
Little House on the Prairie
Hawaii Five-O
(Yoshio Nagata)
Star Trek
(Sarek (voice) (uncredited))
Alias Smith and Jones
Mannix
Gunsmoke
(Ira Stonecipher)
Mission: Impossible
(Colonel Bakram)
Another World
Felony Squad
The Wild Wild West
Run for Your Life
(Col. Sebastian Peralta)
Cimarron Strip
Search
Here Come the Brides
Judd for the Defense
The Defenders
(Assistant District Attorney Holloman)
Jericho
The Secret Empire
(Emperor Thorval)
The Magician
(Foley)
Search for Tomorrow
Star Trek
(Romulan Commander)
Hawaii Five-O
(Rogloff)
Hawaii Five-O
(Dan Bok)
Hawaii Five-O
(Commander Hawkins)
Mission: Impossible
(Felipe Mora)
Mission: Impossible
(Col. Luis Cardoza)
Mission: Impossible
(Aristo Skora)
Buck Rogers in the 25th Century
(Ambassador Duvoe)