 Robert ClarkeDr. Gilbert McKenna | Dr. Gilbert McKenna |
| PPatricia ManningAnn Russell | Ann Russell |
 Nan PetersonTrudy Osborne | Trudy Osborne |
| PPatrick WhyteDr. Frederick Buckell | Dr. Frederick Buckell |
| FFred La PortaDr. Jacob Hoffman | Dr. Jacob Hoffman |
| PPeter SimilukGeorge Messorio | George Messorio |
| WWilliam WhitePolice Lt. Peterson (as Bill Hampton) | Police Lt. Peterson (as Bill Hampton) |
| RRobert GarryDr. Stern | Dr. Stern |
| DDonna KingSuzy's Mother | Suzy's Mother |
| XXandra ConklingSuzy | Suzy |
| DDel CourtneyRadio Deejay | Radio Deejay |
| RRon HonthanerPoliceman in Warehouse | Policeman in Warehouse |
| RRichard CassarinoBarfly / Man on Beach with Kids / Policeman (as Cass Richards) | Barfly / Man on Beach with Kids / Policeman (as Cass Richards) |
| HHelen JosephNot listed | Not listed |
| DDarryl WestbrookNot listed | Not listed |
| BBill CurrieNot listed | Not listed |
| PPearl DriggsConvalescing Woman on Roof | Convalescing Woman on Roof |
| FFran LeightonNot listed | Not listed |
| BBob HafnerNot listed | Not listed |
| JJohn MurphyNot listed | Not listed |
| AAnthony J. Hilder(As Tony Hilder) | (As Tony Hilder) |
| CChuck NewellNot listed | Not listed |
| DDavid SloanNewsboy | Newsboy |
| RRobin C. KirkmanPoliceman (uncredited) | Policeman (uncredited) |
| DDouglas MenvillePoliceman (uncredited) | Policeman (uncredited) |
