Cristina Raines

as Alison Parker

Chris Sarandon

as Michael Lerman

Martin Balsam

as Prof. Ruzinsky

John Carradine

as Fr. Francis Matthew Halloran

José Ferrer

as Priest of the Brotherhood

Ava Gardner

as Helen Logan

Arthur Kennedy

as Monsignor Franchino

Burgess Meredith

as Charles Chazen