Question: Gunmen from Laredo starred which narrator of "Frontier"?
Context: Louis Stevens (December 25, 1896 – September 29, 1963) was an American screenwriter of the silent and sound film eras.  Born on Christmas Day 1896 in Riga, Latvia, Stevens entered the film industry in 1920 when he co-wrote the silent film "A World of Folly", with Jane Grogan.  In his over 30-year career he worked on over 40 screenplays, as well as several film shorts and two television series.  Among his more notable films were: contributing to the script of the 1931 version of "Dracula", starring Bela Lugosi; co-writing the story for What Price Hollywood?  (1932); the screenplay for the 1940 western, "Colorado", directed by Joseph Kane, and starring Roy Rogers; the story for "Streets of Laredo" (1949), starring William Holden, Macdonald Carey and William Bendix; 1951's "The Cimarron Kid", starring Audie Murphy; and "Horizons West" (1952), starring Robert Ryan, Julie Adams, and Rock Hudson.  Stevens' final screenplay was for "Flaming Frontier" in 1958, although he did some work on additional dialogue for the 1959 film, "Desert Desperadoes".  Stevens also wrote several television episodes, one for "Cheyenne", and two for "Hawkeye and the Last of the Mohicans", all in 1957. The Lone Gunmen are a trio of fictional characters, Richard "Ringo" Langly, Melvin Frohike and John Fitzgerald Byers, who appeared in recurring roles on the American television series "The X-Files", and who starred in the short-lived spin-off, "The Lone Gunmen".  Their name was derived from the Warren Commission's conclusion that Lee Harvey Oswald was solely responsible for the assassination of John F. Kennedy. Hermandad de Pistoleros Latinos (HPL, a.k.a. Pistoleros Latinos or Cuetes) is a Latino prison gang founded by Chino Avitia in Texas during the early 1980s.  The English translation of the gang's name is "Brotherhood of Latin Gunmen".  It operates in all Texas prisons and on the streets in many communities in Texas, particularly in Laredo.  HPL is active throughout Mexico with its largest contingent in Nuevo Laredo.  The gang is structured and is estimated to have 1,000 members.  Members maintain close ties to several Mexican drug trafficking organizations and are involved in the trafficking of large quantities of cocaine and marijuana from Mexico into the United States for distribution. Piranha, also known as Piranha, Piranha or Caribe, is a 1972 adventure film shot in Venezuela starring William Smith and Peter Brown who had previously starred together in the "Laredo" Western TV series and Ahna Capri. Gunmen from Laredo is a 1959 American western film produced and directed by Wallace MacDonald, which stars Robert Knapp, Maureen Hingert, and Walter Coy. Sheemanto heera (The Frontier Diamond) is a detective novella written in Bengali by Sharadindu Bandyopadhyay featuring the sleuth Byomkesh Bakshi and Ajit Bandyopadhyay.  Written in 1934, it is the third such work of fiction featuring Byomkesh and is written in first-person narrative, as experienced by Byomkesh's friend, associate, and narrator, Ajit Bandyopadhyay. Frontier Texas!  is a 14000 sqft museum of the American West in downtown Abilene, the seat of Taylor County in West Texas.  The museum serves as a visitors information center for the Texas Forts Trail, one of ten Texas Historical Commission driving regions.  Opened in 2004 at 625 North First Street on 6.4 acre near the Texas and Pacific Railway tracks, the museum focuses on settlers and lifestyles in the Old West.  Exhibits display attacks by Indians and wolves, stampeding buffalo, a card game shootout, and a prairie thunderstorm.  Visitors see depictions of buffalo hunters, Comanche warriors, explorers, and pioneers in the theatre called the "Century of Adventure", 1780-1880.  The narrator in the theater is actor-artist Buck Taylor from Fort Worth. Walter Darwin Coy (January 31, 1909 – December 11, 1974) was an American stage, radio, film, and, principally, television actor, originally from Great Falls, Montana.  He was best known for narrating the NBC western anthology series, "Frontier", which aired early Sunday evenings in the 1955–1956 season. Max McLean is the founder and artistic director of Fellowship for Performing Arts, a New York City-based producer of live theater from a Christian worldview.  McLean conceived, adapted, produced and starred in "The Screwtape Letters", a play based on the book by Oxford and Cambridge scholar, author and fantasy writer C.S. Lewis.  His stage adaptation of Lewis’ "The Great Divorce" launched its national tour in late 2013.  McLean adapted, co-directed and starred in "C.S. Lewis Onstage: The Most Reluctant Convert", and co-wrote and produced "Martin Luther on Trial".  McLean also is the narrator of The Listener's Bible. Bruce Harwood (born April 29, 1963) is a Canadian character actor best known for his role of John Fitzgerald Byers, one of The Lone Gunmen on the television series "The X-Files".  In addition to "The X-Files", Harwood portrayed Byers in the spin-off series "The Lone Gunmen", which aired thirteen episodes in 2001.  He has also played other roles with a strong similarity to Byers, such as Willis, a technician from the Phoenix Foundation in "MacGyver", and government-scientist-turned-conspiracy-theorist Dr. Avery Strong in "The Outer Limits".  He was a founding member of the Vancouver summer Shakespeare festival, Bard on the Beach.  He also starred in the 1988 movie "Earth Star Voyager".
Answer: Walter Darwin Coy