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Peter FalkColumbo
Gene BarryDr. Ray Flemming
Katherine JusticeJoan Hudson
William WindomBurt Gordon
Nina FochCarol Flemming
Virginia GreggMiss Petrie
Andrea KingCynthia Gordon
Susanne BentonThe Blonde
Ena HartmanNurse- Sherry BoucherAir Hostess
Anthony JamesTommy
Frank BakerMan in Park (sem créditos)- Jim CreechPoliceman in Hospital (sem créditos)
- Ed HaskettParty Guest (sem créditos)
Clark HowatDoctor (sem créditos)
Mark RussellPoliceman (sem créditos)
Don StewartAirline Ticket Man (sem créditos)- Tom WilliamsLaundry Delivery Man (sem créditos)