After getting her start in her parents' vaudeville act, Marilyn Miller is taken under the wing of dance sensation Jack Donahue. He senses the girl's enormous talent, and before long she's performing on Broadway. There, she is extremely successful and finds love with songwriter Frank Carter. Yet obstacles remain for the rising star, especially when he proposes marriage just before he's set to be deployed in World War I.
| Actor | Role |
|---|---|
 June HaverMarilyn Miller | Marilyn Miller |
 Ray BolgerJack Donahue | Jack Donahue |
 Gordon MacRaeFrank Carter | Frank Carter |
 Charles RugglesCaro "Pop" Miller | Caro "Pop" Miller |
 Rosemary DeCampMom Miller | Mom Miller |
 S.Z. SakallShendorff | Shendorff |
 Bess FlowersLady in Agent's Office | Lady in Agent's Office |
 Lee WildeClaire Miller | Claire Miller |
 Lyn WildeRuth Miller | Ruth Miller |
 Dick SimmonsHenry Doran | Henry Doran |
 Walter CatlettWalter Catlett | Walter Catlett |
 George ZoritchBallet Specialty | Ballet Specialty |