Tom Tryon as Stephen Fermoyle

Romy Schneider as Annemarie von Hartman

John Huston as Kardinal Glennon

Carol Lynley as Mona Fermoyle / Regina Fermoyle

Dorothy Gish as Celia Fermoyle

Maggie McNamara as Florrie Fermoyle

Bill Hayes as Frank Fermoyle

Cameron Prud'Homme as Din Fermoyle

John Saxon as Benny Rampell

Loring Smith as Cornelius J. Deegan

Cecil Kellaway as Monsignor Monaghan

Jose Duvall as Ramon Gongaro

Peter MacLean as Father Callahan

Burgess Meredith as Father Halley

Ossie Davis as Father Gillis

Jill Haworth as Lalage Menton

Russ Brown as Dr. Heller

Murray Hamilton as Lafe

Chill Wills as Monsignor

Raf Vallone as Cardinal

Robert Morse as Bobby

Arthur Hunnicutt as Sheriff

Doro Merande as Picket

Patrick O'Neal as Cecil Turner

Peter Weck as Kurt

Billy Reed as

Pat Henning as

Tullio Carminati as

Dino Di Luca as

Rudolf Forster as

Josef Meinrad as

Erik Frey as

Josef Krastel as

Matthias Fuchs as

Vilma Degischer as

Wolfgang Preiss as

Jürgen Wilke as

Stefan Skodler as

Wilma Lipp as Soloist