Roy Stuart (July 17, 1927 – December 25, 2005) was an American character actor.
 He is best known for playing Corporal Charles "Chuck" Boyle on television's "Gomer Pyle, U.S.M.C." during seasons two, three, and four from 1965 to 1968.
Frank Spencer Sutton (October 23, 1923 – June 28, 1974) was an American actor best remembered for his role as Gunnery Sergeant Vince Carter on the CBS television series "Gomer Pyle, U.S.M.C."
Ruby Parihar is an Indian actress from Delhi.
 Her first role was in the movie "Prasthanam", directed by Deva Katta.
 She has appeared in "Sandalwood" (Kannada Film) along with Yaksha.
 Ruby's 2nd film in Tollywood is I Hate U, under the direction of Satya ( Puri Jaganath associate) She also acting in the Bollywood remake of the hit movie Johny Gaddar remake in Telugu under the direction of Lakshmi Kanth Chenna Produced By Glitters.
 She Been lucky to be lady oriented film Rudrakshapalli (shooting stage) a film under the lines of Arundathi.
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 She has appeared as brand model for Sreeja Sarees Hyderabad as well as other top Brands across Delhi & Mumbai.
 She also received the prestigious Award NANDI in the best actress category for 3rd best film Prasathanam .
 Currently she also acted in the Bollywood movie Gabbar is Back.
Four Boys and a Gun is a 1957 American crime film directed by William Berke and written by Leo Townsend and Philip Yordan.
 The film stars Frank Sutton, Tarry Green, James Franciscus, William Hinnant, Otto Hulett and Robert Dryden.
 The film was released on January 11, 1957, by United Artists.
Brian Zins is a retired United States Marine Corps Military Police Gunnery Sergeant.
 He is also a competitive shooter known for his proficiency with the M1911 pistol with which he holds various records at the NRA and other events.
 He is also known for competing in the second season of History Channel's marksmen competition "Top Shot".
Ronald Lee Ermey (born March 24, 1944), known professionally as R. Lee Ermey, or even Lee Ermey, is an American actor and voice actor, best known for his role as Gunnery Sergeant Hartman in "Full Metal Jacket", which earned him a Golden Globe Award nomination for Best Supporting Actor.
 He is a former United States Marine Corps staff sergeant and an honorary gunnery sergeant; during his tenure in the U.S. Marine Corps, he served as a drill instructor.
Buck Young (April 12, 1920 – February 9, 2000) was an American actor who played the role as Sergeant Whipple on the "Gomer Pyle, U.S.M.C." TV series, and Deputy Joe Watson on "The Andy Griffith Show".
Pedde made her debut in the TV series "The Little Kidnappers" in 1990.
 She has appeared in numerous major American television series including "The X-Files" and "Smallville" (2003) but is perhaps best known for her role as Gunnery Sergeant Erin Mathias in "Battlestar Galactica".
 She starred in the 2007 film "Juno".
An Officer and a Gentleman is a 1982 American romantic drama film starring Richard Gere, Debra Winger and Louis Gossett, Jr., who won the Academy Award for Best Supporting Actor for the film.
 It tells the story of Zack (Gere), a U.S. Navy Aviation Officer Candidate who is beginning his training at Aviation Officer Candidate School.
 While Zack meets his first true girlfriend during his training, a local young woman named Paula (Winger), he also comes into conflict with the hard-driving Marine Corps Gunnery Sergeant (Gossett, Jr.), the drill instructor training his class.
Louis Cameron Gossett Jr. (born May 27, 1936) is an American actor.
 He is best known for his role as Gunnery Sergeant Emil Foley in the 1982 film "An Officer and a Gentleman", and his role as Fiddler in the 1977 ABC television miniseries "Roots".
 Gossett has also starred in numerous film productions including "A Raisin In The Sun," "The Landlord," "Skin Game", "Travels with My Aunt", "The Laughing Policeman", "The Deep", "Jaws 3-D" (1983), Wolfgang Petersen's "Enemy Mine", the "Iron Eagle" series, "Toy Soldiers" and "The Punisher", in an acting career that spans over five decades.

Question: What actor is best known for staring in Four Boys and a Gun and also acting as a Gunnery Sergeant in Gomez Pyle, U.S.M.C.?
Answer: Frank Sutton