Jacqueline BissetHelen

Christopher PlummerDr. Sherman

John Phillip LawSteven

Sam WanamakerLieut. Fields

Mildred DunnockMrs. Sherman

Gayle HunnicuttBlanche

Elaine StritchNurse

John RonaneDr. Rawley

Sheila BrennanMrs. Oates

Ronald RaddOates

Heather LoweBlind Girl

Christopher MalcolmPoliceman

Harry Van EngelPolice Photographer

Tina Simmons

Peter CollinsonDirector

Allan ScottScreenplay

Mel DinelliOriginal Film Writer

Chris BryantScreenplay

Ethel Lina WhiteNovel

Josef ShaftelExecutive Producer

Peter ShawProducer