Year 1958 (MCMLVIII) was a common year starting on Wednesday (link will display the full calendar) of the Gregorian calendar.

Edward Montgomery Clift (October 17, 1920 – July 23, 1966) was an American film and stage actor.The New York Times’ obituary noted his portrayal of "moody, sensitive young men".

He often played outsiders, often "victim-heroes," - examples include the social climber in George Stevens's A Place in the Sun, the anguished Catholic priest in Hitchcock's I Confess, the doomed regular soldier Robert E. Lee Prewitt in Fred Zinnemann's From Here to Eternity, and the Jewish GI bullied by antisemites in Edward Dmytryk's The Young Lions. Later, after a disfiguring car crash in 1956, and alcohol and prescription drug abuse, he became erratic. Nevertheless important roles were still his, including "the reckless, alcoholic, mother-fixated rodeo performer in Huston's The Misfits, the title role in Huston's Freud, and the concentration camp victim in Stanley Kramer's Judgment at Nuremberg."

Clift received four Academy Award nominations during his career, three for Best Actor and one for Best Supporting Actor.

John R. "Johnny" Cash (February 26, 1932 – September 12, 2003), was an American singer-songwriter, actor, and author, who has been called one of the most influential musicians of the 20th century. Although he is primarily remembered as a country music icon, his songs and sound spanned many other genres including rockabilly and rock and roll—especially early in his career—as well as blues, folk, and gospel. This crossover appeal led to Cash being inducted in the Country Music Hall of Fame, the Rock and Roll Hall of Fame, and Gospel Music Hall of Fame.

Cash was known for his deep, distinctive bass-baritone voice; for the "boom-chicka-boom" sound of his Tennessee Three backing band; for his rebelliousness, coupled with an increasingly somber and humble demeanor; for providing free concerts inside prison walls; and for his dark performance clothing, which earned him the nickname "The Man in Black". He traditionally started his concerts by saying, "Hello, I'm Johnny Cash." and usually following it up with his standard "Folsom Prison Blues".

Blessed Pope John XXIII (Latin: Ioannes PP. XXIII; Italian: Giovanni XXIII), born Angelo Giuseppe Roncalli (25 November 1881 – 3 June 1963), headed the Catholic Church and ruled Vatican City from 1958 until his death.

Pope John was elected on 28 October 1958. He called the Second Vatican Council (1962–1965) but did not live to see it to completion. He died in 1963, only four-and-a-half years after his election, and two months after the completion of his final encyclical, Pacem in Terris. He was beatified, along with Pope Pius IX, on 3 September 2000.

Angelo Giuseppe Roncalli was born in Sotto il Monte, a small country village in the Bergamo province of the Lombardy region of Italy. He was the first-born son of Giovanni Battista Roncalli (1854–1935) and his wife Marianna Giulia Mazzolla (1854–1939), and fourth in a family of 13, including: Angelo Giuseppe, Alfredo (1889–??), Maria Caterina (1877–1883), Teresa (1879–1954), Ancilla (1880–1953), Domenico Giuseppe (22 February 1888 – 14 March 1888), Francesco Zaverio (1883–1976), Maria Elisa (1884–1955), Assunta Casilda (1886–??), Giovanni Francesco (1891–1956), Enrica (1893–1918), Giuseppe Luigi (1894–??) and Luigi (1896–1898). His family worked as sharecroppers as did most of the people of Sotto il Monte – a striking contrast to that of his predecessor, Eugenio Pacelli (Pope Pius XII), who came from an ancient aristocratic family, long connected to the Papacy. However, he was still a descendant of an Italian noble family, from a secondary and impoverished branch.

Domenico Modugno (9 January 1928 – 6 August 1994) was an Italian singer, songwriter, actor, and later in life, a member of the Italian Parliament. He is known for his 1958 international hit song "Nel Blu Dipinto Di Blu (Volare)". He is considered the first Italian cantautore.

Modugno was born in Polignano a Mare, province of Bari (Puglia).

From a young age he wanted to become an actor and in 1951, after his military service, he enrolled in an acting school. While still studying he had a role in a cinematographic version of Filumena Marturano by Eduardo De Filippo as well as some other films.

In 1935 his father moved to San Pietro Vernotico, in the Province of Brindisi (where his parents are buried). Here Domenico attended primary school and learned San Piertro Vernotico's dialect, which belongs to the linguistic area of Lecce's dialect, which is similar to Sicilian. He attended secondary school in Lecce.

In 1957 his song "Lazzarella," sung by Aurelio Fierro, came second in the Festival della Canzone Napoletana, bringing him his first taste of popularity.