| 角色 | 饰演者 | 角色介绍 |
| Jeffrey 'Jeff' Carter (as Lon Chaney) | 小隆·查内 | |
| Mary Carter | 布兰达·乔伊丝 | |
| Roger Graham | 卡罗尔·耐什 | |
| Stevens | Milburn Stone | |
| Dave Curtis | 劳埃德·布里吉斯 | |
| Dr. Williams | Addison Richards | |
| Mrs. O'Connor | Mary Gordon | |
| Harper | George Chandler | |
| Tommy Carter (as Gregory Muradian) | Gregory Marshall | |
| Brandon | Wilton Graff | |
| José Hernandez (as Francis J. MacDonald) | Francis McDonald | |
| Boarder - Jack | Jack Norton | |
| Mr. Moore | Christian Rub | |
| Mr. Reed (uncredited) | Wheaton Chambers | |
| Mrs. Todd (uncredited) | Jody Gilbert | |
| Jason Graham's Butler (uncredited) | Leyland Hodgson | |
| The Spirit of the Inner Sanctum (uncredited) | David Hoffman | |
| New Year's Eve Celebrant (uncredited) | Charles Jordan | |
| Tommy as a Baby (uncredited) | Edward Mahler | |
| Miss Rogers Secretary (uncredited) | Beatrice Roberts | |
| Chemistry Student (uncredited) | Carl Vernell |
