 | Alfred Lunt als The Actor |
 | Lynn Fontanne als The Actress |
 | Roland Young als The Critic |
 | Zasu Pitts als Liesl |
 | Maude Eburne als "Mama" |
 | Herman Bing als A Creditor |
 | Ann Dvorak als Fan Saying "There He Is" (uncredited) |
 | Geraldine Dvorak als Operagoer (uncredited) |
 | Michael Mark als The Actor's Valet (uncredited) |
 | Eric Mayne als Theatregoer (uncredited) |
| Ernest Vajda | Screenplay |
| Ferenc Molnár | Theatre Play |
| Sidney Franklin | Director |
| Douglas Shearer | Sound Director |
| Adrian | Costume Design |
| Cedric Gibbons | Art Direction |
| Conrad A. Nervig | Editor |
| Norbert Brodine | Director of Photography |
| Irving Thalberg | Producer |
| Albert Lewin | Producer |
| Harold S. Bucquet | Assistant Director |
| Claudine West | Continuity |
