Robert James "Bob" Keeshan (June 27, 1927 – January 23, 2004) was an American television producer and actor. He is most notable as the title character of the children's television program Captain Kangaroo, which became an icon for millions of people during its 30-year run from 1955 to 1984.

Keeshan also played the original "Clarabell the Clown" on the Howdy Doody television program.

Keeshan was born in Lynbrook, Nassau, New York. After early graduation from Forest Hills High School in Queens, NY in 1945, during World War II, he enlisted in the United States Marine Corps Reserve, but was still in the United States when Japan surrendered. He attended Fordham University on the GI Bill.

Network television programs began shortly after the end of the war. Howdy Doody, an early show which premiered in 1947 on NBC, was one of the first. Debuting on January 3, 1948, Keeshan played "Clarabell the Clown", a silent Auguste clown who communicated by honking several horns attached to a belt around his waist. One horn meant "yes"; another meant "no". Clarabell often sprayed Buffalo Bob Smith with a seltzer bottle and played practical jokes. Keeshan gave up the role in 1952, and was replaced.

Alphonso Joseph D'Abruzzo (born January 28, 1936), better known as Alan Alda, is an American actor, director, screenwriter, and author. A six-time Emmy Award and Golden Globe Award winner, he is best known for his role as Hawkeye Pierce in the TV series M*A*S*H. He is currently a Visiting Professor at the State University of New York at Stony Brook School of Journalism and a member of the advisory board of The Center for Communicating Science.

In 1996, Alda was ranked #41 on TV Guide's 50 Greatest TV Stars of All Time.

Alda was born Alphonso Joseph D'Abruzzo in The Bronx, New York City. His father, Robert Alda (born Alphonso Giuseppe Giovanni Roberto D'Abruzzo), was an actor and singer, and his mother, Joan Browne, was a former showgirl. His father was of Italian descent and his mother was of Irish ancestry. His adopted surname, "Alda," is a portmanteau of ALphonso and D'Abruzzo. When Alda was seven years old, he contracted Poliomyelitis. To combat the disease, his parents administered a painful treatment regimen developed by Sister Elizabeth Kenny that consisted of applying hot woolen blankets to his limbs and stretching his muscles. Alda attended Archbishop Stepinac High School in White Plains, New York. In 1956, he received his Bachelor of Science degree in English from Fordham College of Fordham University in the Bronx, where he was a student staff member of its FM radio station, WFUV. Alda's half-brother, Antony Alda, was born the same year and would also become an actor.

George Denis Patrick Carlin (May 12, 1937 – June 22, 2008) was an American stand-up comedian, social critic, satirist, actor and writer/author, who won five Grammy Awards for his comedy albums.

Carlin was noted for his black humor as well as his thoughts on politics, the English language, psychology, religion, and various taboo subjects. Carlin and his "Seven Dirty Words" comedy routine were central to the 1978 U.S. Supreme Court case F.C.C. v. Pacifica Foundation, in which a narrow 5–4 decision by the justices affirmed the government's power to regulate indecent material on the public airwaves.

The first of his fourteen stand-up comedy specials for HBO was filmed in 1977. In 1988, the 1990s and 2000s, Carlin's routines focused on socio-cultural criticism of modern American society. He often commented on contemporary political issues in the United States and satirized the excesses of American culture. His final HBO special, It's Bad for Ya, was filmed less than four months before his death.

Donald Shepard "Don" Hewitt (December 14, 1922 – August 19, 2009) was an American television news producer and executive, best known for creating 60 Minutes, the CBS television news magazine, in 1968, which at the time of his death, was the longest-running prime-time broadcast on American television. Under Hewitt's leadership, 60 Minutes was the only news program ever rated the nation's top-ranked television program, an achievement it accomplished five times. Hewitt produced the first televised presidential debate in 1960.

Hewitt was born in New York City, New York, the son of Frieda (née Pike) and Ely S. Hewitt. His father was a Jewish immigrant from Russia, and his mother's family was of German Jewish descent. Hewitt's family moved to Boston, Massachusetts, shortly after his birth, where his father worked as a classified advertising manager for the Boston Herald American. His family later lived in Milwaukee, Wisconsin. He graduated from New Rochelle High School, in New Rochelle, NY.

Hewitt attended New York University and started his journalism career in 1942 as head copyboy for the New York Herald Tribune. He joined the United States Merchant Marine Academy in 1943. After World War II ended in 1945, Hewitt returned to his job as copyboy for the Tribune, then worked for The Associated Press at a bureau in Memphis, Tennessee. However, his wife Mary Weaver—whom he married while working in Memphis—wanted to go to New York City, so he moved back.

Leonard Simon Nimoy ( /ˈniːmɔɪ/ NEE-moy; born March 26, 1931) is an American actor, film director, poet, musician and photographer. Nimoy's most famous role is that of Spock in the original Star Trek series (1966–1969), and in multiple film, television, and video-game sequels.

Nimoy began his career in his early twenties, teaching acting classes in Hollywood and making minor film and television appearances through the 1950s, as well as playing the title role in Kid Monk Baroni. In 1953, he served in the United States Army. In 1965, he made his first appearance in the rejected Star Trek pilot, "The Cage", and would go on to play the character of Mr. Spock until 1969, followed by seven feature films and guest slots in various sequels. His character of Spock had a significant cultural impact and garnered Nimoy three Emmy Award nominations; TV Guide named Spock one of the 50 greatest TV characters. After the original Star Trek series, Nimoy starred in Mission: Impossible for two seasons, hosted the documentary series In Search of..., and narrated Civilization IV, as well as making several well-received stage appearances.