Jack Roy (born Jacob Cohen; November 22, 1921 – October 5, 2004), better known by the stage name Rodney Dangerfield, was an American stand-up comedian, actor, screenwriter, and producer. He was known for his self-deprecating one-liner humor, his catchphrase "I don't get no respect!", and his monologues on that theme.

Dangerfield began his career working as a stand-up comic at the Fantasy Lounge in New York City. His act grew in popularity as he became a mainstay on late-night talk shows throughout the 1960s and 1970s, eventually developing into a headlining act on the Las Vegas casino circuit. His breakout film role came as a boorish nouveau riche golfer in the ensemble sports comedy Caddyshack (1980). He subsequently starred in a string of comedy films such as Easy Money (1983), Back to School (1986), Rover Dangerfield (1991), Ladybugs (1992), and Meet Wally Sparks (1997). He took a rare dramatic role as an abusive father in Oliver Stone's satirical crime film Natural Born Killers (1994).

Over his career he released seven comedy albums including his album No Respect (1980) which won the Grammy Award for Best Comedy Album. He received a star on the Hollywood Walk of Fame in 2002. Health troubles curtailed his output through the early 2000s before his death in 2004, following a month in a coma due to complications from heart valve surgery.