(written from a Production point of view)
John Kenton Shull is an actor who appeared in several episodes of Star Trek: The Next Generation, Star Trek: Deep Space Nine and Star Trek: Voyager. His main appearances have been as Klingons. His costume from the episode "Homestead" was sold off on the It's A Wrap! sale and auction on eBay.  In addition, Shull lent his voice to the Star Trek video games Star Trek: Klingon and Star Trek: Klingon Academy.
Shull has primarily worked on television beginning with his debut on Fantasy Island starring Ricardo Montalban in (1981). He then appeared on The Fall Guy (1982, with Peter Mark Richman), Highway to Heaven (1985, with Noble Willingham), Dallas (1986, with John Beck and Barry Jenner), and The Young and the Restless (with Jonathan Farwell). Further television credits include guest roles in Boomtown (2003, with Virginia Madsen, Neal McDonough, and Vanessa Williams) and Cold Case (2005, co-executive produced by Roxann Dawson).
He made his film debut in the television movie Bates Motel (1987) alongside Gregg Henry, Kerrie Keane, Craig Richard Nelson, Lori Petty and Robert Picardo. He then appeared in the action film Pump Up the Volume (1990, with Christian Slater, Gregg Daniel, Alexander Enberg, Clayton Landey, Robert Schenkkan and Ed Trotta).