An FBI Agent takes on the three unrelated cases of a dead agent to track down his killer.
| Actor | Role |
|---|---|
 Broderick CrawfordJohn 'Ripley | John 'Ripley |
 Ruth RomanKate Martell | Kate Martell |
 Martha HyerConnie Anderson | Connie Anderson |
 Marisa PavanJulie Angelino | Julie Angelino |
 Max ShowalterDave Millson | Dave Millson |
 Kenneth TobeyZack Stewart | Zack Stewart |
 Gene ReynoldsVince Angelino | Vince Angelino |
 William JohnstoneFBI Chief Frank Pace | FBI Chief Frank Pace |
| HHarlan WardeGreg Barker | Greg Barker |
 Jay AdlerUncle Max - aka Charles Martell | Uncle Max - aka Charles Martell |
 Claude AkinsMatty Pavelich | Matty Pavelich |
 Suzanne AlexanderBrenda Ralles | Brenda Ralles |
| MMyra MarshMrs. Downes | Mrs. Downes |
| JJoe BassettJoe Walpo - aka Joe Allen | Joe Walpo - aka Joe Allen |
 William SchallertBen | Ben |
 Alan DexterLt. Jake Kuppol | Lt. Jake Kuppol |
 Stafford ReppBoxing Manager | Boxing Manager |