Leland Jones Orser (born 1960/1961) is an American actor. Orser is primarily a character actor, and has appeared in small roles in a wide variety of films and television series, including Chief of Surgery Dr. Lucien Dubenko on the television series ER.

Orser made his television debut in 1991 on the series Gabriel's Fire. His next roles were small roles on The Golden Girls, Cheers, L.A. Law, The X-Files, NYPD Blue, Law & Order: Special Victims Unit and CSI: Crime Scene Investigation.

In 1999, he played Dr. Arthur Zeller in The Outer Limits episode "Descent". He appeared in Seven (1995) as a man who was involuntarily recruited to kill a prostitute. He was credited as "Crazed Man in Massage Parlour". He played Larry Purvis in Alien Resurrection (1997).

He played the antagonist Richard Thompson in the Denzel Washington thriller The Bone Collector (1999). In 2001, he had a small role in Pearl Harbor as an injured man saved by Kate Beckinsale's character. In 2003, he appeared as Wesley in the comic-turned-film Daredevil. He appeared in Saving Private Ryan as the traumatized pilot of a crashed glider.[citation needed]

Orser also appeared in various roles in the Star Trek franchise, among them playing a Changeling posing as the Romulan Colonel Lovok in the Star Trek: Deep Space Nine episode "The Die is Cast" and in the episode "Sanctuary" playing a bit part as a member of the Skrreean race. He also played a homicidal hologram in the Star Trek: Voyager episode "Revulsion". In the franchise's more recent series, Star Trek: Enterprise, he played a low-life in the time-travel episode "Carpenter Street".[2]

He played Ansel in the drama thriller film Faults.[3] From 2004-09, he played Chief of Surgery Dr. Lucien Dubenko, a recurring character, on ER. Most recently he has appeared in all three of the Taken film series as "Sam".