Florence Foster Jenkins

Meryl Streep portrays the title character, Florence Foster Jenkins, a New York heiress with a passion for singing despite her lack of talent.

Hugh Grant plays St. Clair Bayfield, Florence Foster Jenkins' manager and long-time companion, who works tirelessly to protect her from the truth about her singing abilities.

Simon Helberg takes on the role of Cosmé McMoon, Florence Foster Jenkins' pianist and reluctant accompanist, who is both amazed and perplexed by her unique vocal abilities.

Rebecca Ferguson portrays Kathleen Weatherley, a socialite and potential rival to Florence Foster Jenkins, who becomes jealous of the attention she receives.

Nina Arianda plays Agnes Stark, a loyal friend and supporter of Florence Foster Jenkins, who encourages her in her pursuit of singing despite her lack of talent.

Stanley Townsend portrays Phineas Stark, the husband of Agnes Stark, who is both amused and bewildered by Florence Foster Jenkins' singing.

David Haig takes on the role of Carlo Edwards, a theatrical agent who helps Florence Foster Jenkins organize and promote her ill-fated concerts.

Brid Brennan plays Kitty, a close friend and confidante of Florence Foster Jenkins, who provides emotional support during her pursuit of a singing career.