
Acting
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 VI: The Undiscovered Country
as Sarek

The Radicals
as Eberhard Hoffman

Star Trek IV: The Voyage Home
as Sarek

Star Trek III: The Search for Spock
as Ambassador Sarek

Back to the Planet of the Apes
as Urko

Farewell to the Planet of the Apes
as Urko

The Forgotten City of the Planet of the Apes
as Urko

Life, Liberty and Pursuit on the Planet of the Apes
as Urko

Treachery and Greed on the Planet of the Apes
as Urko

Star Trek: The Motion Picture
as Klingon Captain

In the Heat of the Night
1 ep.

Star Trek: The Next Generation
as Sarek · 2 ep.

Otherworld
as Commander Perel Sightings · 1 ep.

Buck Rogers in the 25th Century
as Ambassador Duvoe · 2 ep.

Cliffhangers
as Emperor Thorval · 12 ep.
The Secret Empire
as Emperor Thorval · 12 ep.

The Incredible Hulk
1 ep.

Little House on the Prairie
as Peter Ingalls · 1 ep.

Planet of the Apes
as Urko · 14 ep.

The Magician
as Foley · 1 ep.
Star Trek III: The Search for Spock
1984