Tom Ewell was an American film, stage and television actor, and producer. His most successful and most identifiable role was that of Richard Sherman in The Seven Year Itch, a character he played in the Broadway production (1952–1954) and reprised for the 1955 film adaptation. He received a Tony Award for his work in the play and a Golden Globe Award for his performance in the film. Although Ewell preferred acting on stage, he accepted several other screen roles in light comedies of the 1950s, most notably The Girl Can't Help It (1956). He appeared in the film version of the musical State Fair (1962) and in a small number of additional ones released between the early 1960s and 1980s.

The Seven Year Itch is a 1955 American romantic comedy film directed by Billy Wilder, from a screenplay he co-wrote with George Axelrod from the 1952 three-act play. The film stars Marilyn Monroe and Tom Ewell, who reprised his stage role. It contains one of the most iconic pop-culture images of the 20th century – Monroe standing on a subway grate as her white dress is blown upwards by a passing train. The titular phrase, which refers to a waning interest in monogamous relationship after seven years of marriage, has been used by psychologists.