The Rat Pack was an informal group of entertainers, the second iteration of which ultimately made films and appeared together in Las Vegas casino venues. They originated as a group of A-list show business friends who met casually at the Los Angeles home of Humphrey Bogart and Lauren Bacall. In the 1960s, the group featured Frank Sinatra, Dean Martin, Sammy Davis Jr., Joey Bishop, and Peter Lawford, among others. They appeared together on stage and in films in the early 1960s, including the films Ocean's 11, and Sergeants 3; after Lawford's expulsion, they filmed Robin and the 7 Hoods with Bing Crosby in what was to be Lawford's role. Sinatra, Martin, and Davis were regarded as the group's lead members after Bogart's death.
