(written from a Production point of view)
Boris Lee Krutonog (born 26 July 1960; age 61) portrayed Lojur in Star Trek VI: The Undiscovered Country. He later reprised that role in the Star Trek: Voyager third season episode "Flashback", where he was credited only as Boris Krutonog.
Krutonog is better known for his role as the helmsman on another ship, the Soviet Typhoon-class submarine Red October, in the 1990 film The Hunt for Red October (with Timothy Carhart, Ned Vaughn, Daniel Davis, and Gates McFadden).
Krutonog later served as a co-executive producer on the A&E network reality television series Dog the Bounty Hunter and was series star Duane Lee "Dog" Chapman's best man during Chapman's wedding May 2006. He also played Russian Consul aide Vasily on the TV series 24 during its sixth season.
In 2003, Chapman and Krutonog were both arrested in Mexico after the capture of serial rapist and Max Factor heir, Andrew Luster. Mexican authorities dismissed all charges against Chapman and Krutonog after the statute of limitations had expired. 
He currently operates a private ambulance company in Los Angeles called Amwest Ambulance company.