Question: James Arness was the real life brother of the actor of which "Airplaine!" character?

Context paragraphs:
Forrest Tucker: Forrest Meredith Tucker (February 12, 1919 – October 25, 1986) was an American actor in both movies and television who appeared in nearly a hundred films.  Tucker worked as a vaudeville straight man, aged fifteen years old.  A mentor provided funds and contacts for a trip to California, where party hostess Cobina Wright persuaded guest Wesley Ruggles to give Tucker a screen test, based on his photogenic good looks, thick wavy hair and height of six feet, five inches - putting him into the same league as John Wayne, Chuck Connors, Fess Parker, James Arness, and Peter Graves, Arness's younger brother.  Tucker was a sight reader who needed only one take.  His film career started well despite a perception in most Hollywood studios that blond men were not photogenic.  After twenty years spent mainly in Westerns and action roles, he returned to his roots, showing versatility as a comedic and stage musical actor.  In the TV show "F Troop", he became identified with the character of Cavalry Sgt. Morgan O'Rourke (a manipulative character quite similar to Phil Silvers' role as MSgt Ernie Bilko).  Tucker struggled with a drinking problem that began to affect his performances in the later years of his career.

Jackie Fulton: George Hines (born June 1, 1963) is a retired American professional wrestler, best known by his ringname Jackie Fulton, who competed in regional and independent promotions including the American Wrestling Association, East Coast Championship Wrestling, the National Wrestling Alliance, World Championship Wrestling and, most notably, his brief but memorable stint in Smoky Mountain Wrestling where he teamed with his real life brother Bobby Fulton as The Fantastics.

Gun the Man Down: Gun the Man Down is a 1956 western film directed by Andrew V. McLaglen and starring James Arness and Angie Dickinson in her first leading role.  The film was produced by Robert E. Morrison for his brother John Wayne's company Batjac Productions.  It was the second theatrical feature directed by McLaglen, but his first of many westerns.

John Garea: John "Johnny" Garea (born 1949) is a semi-retired New Zealand professional wrestler, known by his ring name Johnny Garcia, who competed in Steve Rickard's All Star-Pro Wrestling, World Championship Wrestling and occasionally for the World Wrestling Federation during the 1970s and 80s.  The youngest pro wrestler in New Zealand at the time of his debut in 1970, he was a regular on the Australian wrestling programme "Big Time Wrestling" and its New Zealand counterpart "On the Mat" as well as a two-time NWA New Zealand Heavyweight Champion.  Garea is the real life brother of four-time WWWF World Tag Team Champion and WWE Road Agent Tony Garea.

The Alamo: 13 Days to Glory: The Alamo: 13 Days to Glory (1987) is a made-for-TV film about the 1836 Battle of the Alamo written and directed by Burt Kennedy, starring James Arness as James Bowie, Brian Keith as Davy Crockett, Alec Baldwin as William Barrett Travis, Raul Julia as Antonio López de Santa Anna, and featuring a single scene cameo by Lorne Greene as Sam Houston.  Unlike most other films about the Alamo — the most prominent other exception being the 1955 film "The Last Command" (which was released during the cultural frenzy created by Walt Disney's Davy Crockett television miniseries) — it focuses on Bowie as the main character rather than Crockett.

Peter Graves: Peter Graves (born Peter Duesler Aurness; March 18, 1926 – March 14, 2010) was an American film and television actor.  He was best known for his role as Jim Phelps in the CBS television series "" from 1967 to 1973 (original) and from 1988 to 1990 (revival).  His elder brother was actor James Arness (1923–2011).  Graves was also known for his portrayal of airplane pilot Captain Clarence Oveur in the 1980 comedy film "Airplane! " and its 1982 sequel "".

James Arness: James Arness (May 26, 1923 – June 3, 2011) was an American actor, best known for portraying Marshal Matt Dillon for 20 years in the television series "Gunsmoke".  Arness has the distinction of having played the role of Dillon in five separate decades: 1955 to 1975 in the weekly series, then in "" (1987) and four more made-for-television "Gunsmoke" films in the 1990s.  In Europe, Arness reached cult status for his role as Zeb Macahan in the western series "How the West Was Won".  He was the older brother of actor Peter Graves (1926–2010).

Jimmy Noel: Jimmy Noel (May 15, 1903–January 31, 1985) was a Massachusetts-born actor and stuntman who appeared in hundreds of largely uncredited roles in film and television between 1949 and 1975.  He appeared 202 times on CBS's western series, "Gunsmoke", starring James Arness, and in 144 episodes of the ABC/Desilu production, "The Life and Legend of Wyatt Earp", with Hugh O'Brian in the title role of deputy Marshal Wyatt Earp.  Buddy Roosevelt made similar appearances in sixty-five "Wyatt Earp" episodes.

Gregg Palmer: Gregg Palmer (born Palmer Edvind Lee; January 25, 1927 – October 31, 2015) was an American actor, known primarily for his work in television westerns.  He appeared from 1960-1975 in varying roles in twenty episodes of CBS's "Gunsmoke" with James Arness, thirteen segments of the syndicated "Death Valley Days", and nine episodes of NBC's "The Virginian" starring James Drury in the title role.  He guest starred five times on "Bonanza", NBC's longest-running western.

Justice Pain: Christopher Wilson (born May 16, 1978) is an American retired professional wrestler better known by his ring name, Justice Pain.  Pain is best known for his time in Combat Zone Wrestling, as well as Xtreme Pro Wrestling and Pro Wrestling Unplugged.  He held numerous titles in his CZW stint and is the real life brother of CZW wrestler and former tag team partner Nick Gage.

Supporting paragraphs: James Arness Peter Graves
Answer: Captain Clarence Oveur