In which film is Oda Mae Brown a character?

Who played Johnny Castle in 'Dirty Dancing'? Who played Frances "Baby" Houseman in 'Dirty Dancing'? Who played Sam Wheat in 'Ghost'? Who played Oda Mae Brown in 'Ghost'? Who played Vivian Ward in 'Pretty Woman'? In which film is Vivian Ward a character? Who played Phil Connors in 'Groundhog Day'? Who played Peter Venkman in 'Ghostbusters'?