Charlton Heston, who appeared in some 100 films in his 60-year acting career but who is remembered chiefly for his monumental, jut-jawed portrayals of Moses, Ben-Hur and Michelangelo, died in April 2008 at his home in Beverly Hills, Calif. He was 84. In August 2002, Mr. Heston announced that he had received a diagnosis of neurological symptoms “consistent with Alzheimer’s disease.” Mr. Heston’s life changed forever when he caught the eye of the director Cecil B. DeMille. DeMille, who was planning his next biblical spectacular, “The Ten Commandments,” looked at the young, physically imposing Mr. Heston and saw his Moses. Mr. Heston became a marquee name. Late in life he became a staunch opponent of gun control. Elected president of the National Rifle Association in 1998, he proved to be a powerful campaigner against what he saw as the government’s attempt to infringe on a constitutional guarantee — the right to bear arms. John Charles Carter was born on Oct. 4, 1923, and from the small town of St. Helen, Mich., where his family moved when he was a small boy and where his father ran a lumber mill. When his parents divorced in the 1930s and his mother remarried — his stepfather’s surname was Heston — the family moved back to the Chicago suburbs, this time Winnetka. He joined the theater program at his new high school and went on to enroll at Northwestern University on a scholarship. By that time, he was convinced he had found his life’s work. Mr. Heston also found a fellow drama student, Lydia Clarke, whom he married in 1944. Mr. Heston was proud of his collection of some 30 guns at his longtime home in the Coldwater Canyon area of Los Angeles, where he and his wife raised their son, Fraser, and daughter, Holly Ann. They all survive him, along with three grandchildren. Mr. Heston was always able to channel some energies into the public arena. He was an active supporter of the Rev. Dr. Martin Luther King Jr., calling him “a 20th-century Moses for his people,” and participated in the historic march on Washington in 1963. He served as president of the Screen Actors Guild from 1966 to 1971, following in the footsteps of his friend and role model Ronald Reagan. A registered Democrat for many years, he was nevertheless selective in the candidates he chose to support and often campaigned for conservatives. He became a Republican after Democrats in the Senate blocked the confirmation of Judge Robert Bork, a conservative, to the Supreme Court in 1987. Mr. Heston had supported the nomination and was critical of the Reagan White House for misreading the depth of the liberal opposition. In May 2001, he was unanimously re-elected to an unprecedented fourth term by the association’s board of directors. The association had amended its bylaws in 2000 to allow Mr. Heston to serve a third one-year term as president. Two months after his celebrated speech at the 2000 convention, it was disclosed that he had checked himself into an alcohol rehabilitation program. In May 2001, he was unanimously re-elected to an unprecedented fourth term by the NRA's board of directors. The association had amended its bylaws in 2000 to allow Mr. Heston to serve a third one-year term as president. Two months after his celebrated speech at the 2000 convention, it was disclosed that he had checked himself into an alcohol rehabilitation program.