Ordained Priest | Years | Name | Current Title |
| Most Senior |
| 2 May 1954 |
| Archbishop Blasco Francisco Collaço | Apostolic Nuncio Emeritus to South Africa |
| 27 Jul 1954 |
| Armand Gaétan Cardinal Razafindratandra | Archbishop Emeritus of Antananarivo |
| 15 Jul 1956 |
| Sergio Cardinal Sebastiani | President Emeritus of the Prefecture for the Economic Affairs of the Holy See, Roman Curia |
| 27 Jul 1956 |
| Bishop Raymond Razakarinvony | Bishop Emeritus of Miarinarivo |
| 26 Aug 1956 |
| Archbishop Albert Joseph Tsiahoana | Archbishop Emeritus of Antsiranana |
| 28 Oct 1956 |
| Bishop Donald Joseph Leo Pelletier, M.S. | Bishop of Morondava |
| 28 Jun 1957 |
| Bishop Alwin Albert Hafner, M.S.F. | Bishop Emeritus of Morombe |
| 29 Jun 1959 |
| Bishop Jean-Pierre-Dominique Zévaco, C.M. | Bishop Emeritus of Tôlagnaro |
| 11 Apr 1960 |
| Bishop René Joseph Rakotondrabé | Bishop of Toamasina |
| 30 Jul 1961 |
| Archbishop Philibert Randriambololona, S.J. | Archbishop Emeritus of Fianarantsoa |
| 22 Dec 1962 |
| Bishop Robert Lucien Chapuis, M.E.P. | Bishop Emeritus of Mananjary |
| 28 Jun 1964 |
| Archbishop Agostino Marchetto | Secretary of the Pontifical Council for Pastoral Care of Migrants and Itinerant Peoples, Roman Curia |
| Most Junior |
| 15 Aug 1992 |
| Bishop Fidelis Rakotonarivo, S.J. | Bishop of Ambositra |
| 21 Sep 1991 |
| Bishop Jean Claude Randrianarisoa | Bishop of Miarinarivo |
| 29 Jul 1990 |
| Bishop Roger Victor Rakotondrajao | Coadjutor Bishop of Mahajanga |
| 21 Mar 1987 |
| Bishop Gustavo Bombin Espino, O.SS.T. | Bishop of Tsiroanomandidy |
| 28 Sep 1986 |
| Bishop Désiré Tsarahazana | Bishop of Fenoarivo Atsinanana |
| 11 Jun 1986 |
| Bishop Zygmunt Robaszkiewicz, M.S.F. | Bishop of Morombe |
| 15 Aug 1984 |
| Bishop Benjamin Marc Ramaroson, C.M. | Bishop of Farafangana |
| 28 Dec 1980 |
| Bishop José Alfredo Caires de Nobrega, S.C.I. | Bishop of Mananjary |
| 14 Aug 1980 |
| Archbishop Fulgence Rabemahafaly | Archbishop of Fianarantsoa |
| 9 Sep 1979 |
| Bishop Jean-Paul Randriamanana | Auxiliary Bishop of Antananarivo |
| 27 May 1979 |
| Bishop Rosario Saro Vella, S.D.B. | Bishop of Ambanja |
| 16 Oct 1977 |
| Bishop Philippe Ranaivomanana | Bishop of Ihosy |