Seth Rogen (pronounced /ˈroʊɡɪn/; born April 15, 1982) is a Canadian stand-up comedian, actor, producer, screenwriter, and voice artist. Rogen began his career doing stand-up comedy during his teen years, winning the Vancouver Amateur Comedy Contest in 1998. While still living in his native Vancouver, he landed a small part in Freaks and Geeks. Shortly after Rogen moved to Los Angeles for his role, Freaks and Geeks was canceled after one season due to poor ratings. He then got a part on the equally short-lived Undeclared, which also hired him as a staff writer.

After landing a job as a staff writer on the final season of Da Ali G Show, for which Rogen and the other writers received an Emmy nomination, he was guided by film producer Judd Apatow toward a film career. Rogen was cast in a major supporting role and credited as a co-producer in Apatow's directorial debut, The 40-Year-Old Virgin. After Rogen received critical praise for that performance, Universal Pictures agreed to cast him as the lead in Apatow's directorial feature films Knocked Up and Funny People. Rogen and his comedy partner Evan Goldberg co-wrote the films Superbad, Pineapple Express, and The Green Hornet. Rogen has done voice work for the films Horton Hears a Who!, Kung Fu Panda, Monsters vs. Aliens, and Paul. He married fellow screenwriter Lauren Miller in October 2011.

Jerome Allen "Jerry" Seinfeld (born April 29, 1954) is an American stand-up comedian, actor, writer, and television and film producer, best known for playing a semi-fictional version of himself in the sitcom Seinfeld (1989–1998), which he co-created and co-wrote with Larry David, and, in the show's final two seasons, co-executive-produced.

In his first major foray back into the media since the finale of Seinfeld, he co-wrote and co-produced the film Bee Movie, also taking on the lead role of Barry B. Benson. In February 2010, Seinfeld premiered a reality TV series called The Marriage Ref on NBC. Seinfeld directed Colin Quinn in the Broadway show Long Story Short at the Helen Hayes Theater in New York which ran until January 8, 2011.

Seinfeld is known for specializing in observational humor, often focusing on personal relationships and uncomfortable social obligations. Comedy Central ranked Jerry Seinfeld as one of the twelve greatest stand-up comedians of all time in its four-part special The 100 Greatest Standups Of All Time.

David Michael Letterman (born April 12, 1947) is an American television host and comedian. He hosts the late night television talk show, Late Show with David Letterman, broadcast on CBS. Letterman has been a fixture on late night television since the 1982 debut of Late Night with David Letterman on NBC. Letterman recently surpassed friend and mentor Johnny Carson for having the longest late-night hosting career in the United States of America.

Letterman is also a television and film producer. His company Worldwide Pants produces his show as well as its network follow-up The Late Late Show with Craig Ferguson. Worldwide Pants has also produced several prime-time comedies, the most successful of which was Everybody Loves Raymond, currently in syndication.

In 1996, David Letterman was ranked #45 on TV Guide's 50 Greatest TV Stars of All Time.

Letterman was born in Indianapolis, Indiana. His father, Harry Joseph Letterman (April 1915 – February 1973), was a florist of British descent; his mother Dorothy Letterman (née Hofert, now Dorothy Mengering), a Presbyterian church secretary of German descent, is an occasional figure on the show, usually at holidays and birthdays.