Ordained Bishop | Years | Name | Current Title |
8 Dec 1968 |
| Bishop Alessandro Staccioli, O.M.I. | Auxiliary Bishop Emeritus of Siena-Colle di Val d’Elsa-Montalcino, Italy |
14 Dec 1980 |
| Renato Raffaele Cardinal Martino | President Emeritus of the Dicastery for Promoting Integral Human Development, Roman Curia |
16 Jan 1983 |
| Bishop Jean Khamsé Vithavong, O.M.I. | Vicar Apostolic Emeritus of Vientiane |
18 Jun 1989 |
| Archbishop Luigi Bressan | Archbishop Emeritus of Trento, Italy |
15 Nov 1992 |
| Archbishop Adriano Bernardini | Apostolic Nuncio |
6 Jan 1999 |
| Archbishop Salvatore Pennacchio | President of the Pontifical Ecclesiastical Academy, Roman Curia |
23 Jan 1999 |
| Archbishop Louis Chamniern Santisukniram | Archbishop Emeritus of Thare and Nonseng, Thailand |
22 Apr 2001 |
| Louis-Marie Ling Cardinal Mangkhanekhoun, I.V.Dei | Vicar Apostolic of Vientiane |
6 Jan 2002 |
| Archbishop Giovanni d’Aniello | Apostolic Nuncio to Russian Federation |
6 Jan 2003 |
| Archbishop Paul Tschang In-Nam | Apostolic Nuncio to Netherlands |
27 Jun 2006 |
| Bishop Philip Banchong Chaiyara, C.SS.R. | Bishop Emeritus of Ubon Ratchathani, Thailand |
10 Apr 2010 |
| Bishop Jean Marie Prida Inthirath | Vicar Apostolic of Savannakhet |
19 Mar 2016 |
| Archbishop Peter Bryan Wells | Apostolic Nuncio to Thailand |
15 Aug 2022 |
| Bishop Andrew Souksavath Nouane Asa | Vicar Apostolic of Paksé |