| 角色 | 饰演者介绍 |
| Henry Spencer (as John Nance) | 杰克·南斯 |
| Man in the Planet | 杰克·菲斯克 |
| Little Girl (as Jennifer Lynch) | 詹妮弗·林奇 |
| Mr. X | Allen Joseph |
| Mrs. X | Jeanne Bates |
| Lady in the Radiator | Laurel Near |
| Landlady (long version) | V. Phipps-Wilson |
| Grandmother | Jean Lange |
| The Boy | Thomas Coulson |
| Bum | John Monez |
| Paul | Darwin Joston |
| The Boss | Neil Moran |
| Pencil Machine Operator | Hal Landon Jr. |
| Little Boy | Brad Keeler |
| Person Digging in the Alley (long version) | Peggy Lynch |
| Person Digging in the Alley (long version) | Doddie Keeler |
| Man with Cigar | Gill Dennis |
| Man Fighting | Toby Keeler |
| Beautiful Girl Across the Hall (as Judith Anna Roberts) | Judith Roberts |
| Mr. Roundheels (as Raymond Walsh) | Jack Walsh |
