When the nephews of Phyllis Carter are killed in an automobile crash while under the influence of narcotics, she persuades Police Lieutenant Jim Hahan to use her as an undercover agent.
| Actor | Role |
|---|---|
 Betsy PalmerPhyllis Carter / Lynn Stuart | Phyllis Carter / Lynn Stuart |
 Jack LordWillie Down | Willie Down |
 Barry AtwaterJim Hagan | Jim Hagan |
 John AndersonDoc | Doc |
 Harry JacksonJerry Jackson / Wilbur Stuart | Jerry Jackson / Wilbur Stuart |
 Gavin MacLeodTurk | Turk |
 Richard BullCustoms Officer (uncredited) | Customs Officer (uncredited) |
| RRita DuncanSue Diggins (uncredited) | Sue Diggins (uncredited) |
 Claudia BryarNora Efron (uncredited) | Nora Efron (uncredited) |
| DDon DevlinThe Kid (uncredited) | The Kid (uncredited) |
| AArt LewisGus (uncredited) | Gus (uncredited) |
 Karl LukasHal Bruck (uncredited) | Hal Bruck (uncredited) |