St. (Padre) Pio
Pope St. John Paul II
Pope St. Paul VI
St. Teresa of Calcutta
St. Jose Maria Escriva, founder of Opus Dei
St. (Madre) Maravillas
Pope Benedict XVI
Blessed Madre Esperanza of Jesus
Venerable Marthe Robin
Venerable Fr. Walter Ciszek
Venerable Manuel Garcia Nieto
Servant of God Sr. Lucia of Fatima
Cardinal Ottaviani (Prefect of the Congregation for the Doctrine of the Faith at time of the apparitions)
Cardinal Carlos Sierra, current archbishop of Madrid, Spain, and a member of the Congregation for the Oriental Churches and of the Pontifical Commission for Latin America
Archbishop Casimiro Morcillo Gonzalez of Madrid, Spain (former) and a Council Father of Vatican II
Archbishop Manuel Pío López Estrada of Xalapa, Mexico, and a Council Father of Vatican II
Bishop João Pereira Venâncio of Leiria-Fatima, Portugal, at the time of the apparitions
Servant of God Fr. Aloysius Ellacuria
Mother Angelica
[Information graciously shared with PrivateRevelation.org by Glenn Hudson, an consummate expert on Garabandal ( https://www.facebook.com/groups/163674987784 )]
The visionary Maria Simma can be added to this amazing list.