| C.K. Dexter-Haven | 平·克劳斯贝
 | |
| Tracy Samantha Lord | 格蕾丝·凯利
 | |
| Mike Connor | 弗兰克·辛纳特拉
 | |
| Liz Imbrie | 西莱斯特·霍姆
 | |
| Uncle Willie | 路易斯·卡尔亨
 | |
| Seth Lord | 西德尼·布莱克默
 | |
| George Kittredge | John Lund | |
| Mrs. Seth Lord | Margalo Gillmore | |
| Caroline Lord | Lydia Reed | |
| Dexter-Haven's butler | Gordon Richards | |
| Lords' Butler | Richard Garrick | |
| The Parson (uncredited) | Hugh Boswell | |
| Louis' drummer (uncredited) | Barrett Deems | |
| Louis' clarinetist (uncredited) | Edmond Hall | |
| Editor (uncredited) | Paul Keast | |
| Mac (uncredited) | Richard Keene | |
| Louis' pianist (uncredited) | Billy Kyle | |
| Ruth (Jazz Festival organizer) (uncredited) | Ruth Lee | |
| Louis' bassist (uncredited) | Arvell Shaw | |
| Lawrence (Uncle Willie's butler) (uncredited) | Reginald Simpson | |
| Helen (Jazz Festival organizer) (uncredited) | Helen Spring | |
| Louis' trombonist (uncredited) | James Young | |
| Themselves | Louis Armstrong and His Band | |
