Henry HathawayDirector
Paul DouglasOfcr. Charlie Dunnigan
Richard BasehartRobert Cosick
Barbara Bel GeddesVirginia Foster
Debra PagetRuth
Agnes MooreheadChristine Hill Cosick
Robert KeithPaul E. Cosick
Howard da SilvaDeputy Police Chief Moskar
Jeffrey HunterDanny Klempner
Martin GabelDr. Strauss
Grace KellyMrs. Louise Ann Fuller
Frank FaylenWalter, room service waiter
Jeff CoreySgt. Farley
Donald RandolphDr. Benson
Willard WatermanMr. Harris
Kenneth HarveyPolice Operator (uncredited)
John CassavetesBit Part (uncredited)
Ossie DavisCab driver (uncredited)
Russell HicksRegan, Hotel Manager (uncredited)
Brian KeithExtra (uncredited)
Harvey LembeckCab driver (uncredited)
Joyce Van PattenBarbara, Ruth's friend (uncredited)
James WarrenThomas Edward Fuller (uncredited)