Brad Pitt and Leonardo DiCaprio are both slated to star in Quentin Tarantino's upcoming film, ‘Once Upon a Time in Hollywood,’ about two neighbors of Sharon Tate in the 1960s. The actress, married to Roman Polanski, was famously murdered in her home by Charles Manson.

• Film Actor, Producer
  (1963–)

George and Amal Clooney will be marching at the March 24 gun violence rally and donating $500,000 in support of survivors of last week’s Parkland, Florida mass shooting. Later the same day, Oprah and film exec Jeffrey Katzenberg announced they’d match the Clooneys’ donation.

• Film Actor, Television Actor, Activist
  (1961–)

Actor Casey Affleck has appeared in films including 'Good Will Hunting,' 'Gone Baby Gone' and 'Ocean's Eleven.' In 2017, he received an Academy Award for his role in 'Manchester By the Sea.'

• Animal Rights Activist, Film Actor
  (1975–)

Matt Damon is an award-winning Hollywood actor, having earned a screenwriting Oscar for his work on 'Good Will Hunting.' He's also known for the Jason Bourne films as well as 'The Talented Mr. Ripley,' 'Behind the Candelabra' and 'The Martian.'

• Screenwriter, Film Actor
  (1970–)

Frank Sinatra was one of the most popular entertainers of the 20th century, forging a career as an award-winning singer and film actor.

• Singer, Film Actor
  (1915–1998)

Sammy Davis Jr. was a highly popular actor, comedian, singer and dancer. He was also part of the Rat Pack with Frank Sinatra and Dean Martin, with whom he starred in several films.

• Dancer, Comedian, Theater Actor, Film Actor, Television Actor, Singer
  (1925–1990)

Bernie Mac was a standup comedian and actor on film and television known for his "Bernie Mac Show" and appearance in the "Ocean's 11" films.

• Comedian, Actor
  (1957–2008)

Actor, singer Dean Martin starred in several films with Jerry Lewis and belonged to the "Rat Pack," which included Frank Sinatra and Sammy Davis, Jr.

• Comedian, Actor, Singer
  (1917–1995)

Actor Peter Lawford ran with the Rat Pack, married a Kennedy and was the last person to speak to Marilyn Monroe.

• Film Actor
  (1923–1984)

Don Cheadle is a critically acclaimed actor who has appeared in such films as 'Crash,' 'Hotel Rwanda' and 'Iron Man 2.'

• Television Actor, Film Actor
  (1964–)

Actor Elliott Gould starred in the original M*A*S*H movie, married Barbra Streisand, and is one of Ocean's Eleven (2001 version).

• Actor
  (1938–)

Carl Reiner created, wrote and produced The Dick Van Dyke Show. It was based on his experience as a television writer for Your Show of Shows.

• Author, Television Actor, Director
  (1922–)

Entertainer Joey Bishop starred in his own TV sitcom, and hosted his own late-night talk show. He was a member of the Rat Pack, along with Frank Sinatra.

• Talk Show Host, Television Actor, Comedian, Film Actor
  (1918–2007)