The Most Rev. Dr. Paul-Werner Scheele (chair from 1988 to 1993)
 
The Most Rev. Dr. Karl Lehmann (chair from 1986 to 1987)
 
The Most Rev. Dr. Hans L. Martensen
 
Prof. Dr. Christian Mhagama
 
The Most Rev. Dr. Alfons Nossol
 
Prof. Dr. Vinzenz Pfnür
 
Prof. Dr. Lothar Ullrich
 
Prof. Dr. Jared Wicks S.J.

The Rt. Rev. (retired) Dr. James Crumley (chair)
 
Prof. Dr. Johannes P. Boendermaker
 
The Rt. Rev. Dr. Gottfried Brakemeier
 
The Rt. Rev. Dr. Manas Buthelezi
 
Prof. Dr. Inge Lönning
 
Prof. Dr. Dorothea Wendebourg
 
The Rt. Rev. (emeritus) Dr. Ulrich Wilckens

Lutheran
      Prof. Dr. Robert Jenson
      Prof. Dr. Harding Meyer
 
Roman Catholic
      Prof. Dr. Aloys Klein
      Prof. Dr. Hervé Legrand O.P.

The Rev. Dr. Eugene L. Brand (Lutheran World Federation)
 
Msgr. Dr. Basil Meeking (Secretariat for Promoting Christian Unity, 1986 to 1987)
 
Msgr. Dr. John Radano (Pontifical Council for Promoting Christian Unity)
 
The Rev. Dr. Heinz-Albert Raem (Pontifical Council for Promoting Christian Unity, from 1990)