Philippe Villeneuve is the chief architect for historic monuments in France, including Notre-Dame de Paris, and has overseen restoration efforts at the cathedral since the 2019 fire.

Barry Bergdoll is the Meyer Schapiro Professor of Art History at Columbia University. Professor Bergdoll’s broad interests center on modern architectural history. Trained in art history rather than architecture, he has an approach most closely allied with cultural history and the history and sociology of professions. He has studied questions of the politics of cultural representation in architecture, the larger ideological content of nineteenth-century architectural theory, and the changing role of both architecture as a profession and architecture as a cultural product in nineteenth-century European society. In exhibitions at the Canadian Centre for Architecture and at the Museum of Modern Art, where he served as Philip Johnson Chief Curator from 2007 to 2013, Bergdoll has offered a series of exhibitions intended to offer more inclusive visions of subjects from Mies van der Rohe (and his relationship to garden reform and landscape), the Bauhaus, Henri Labrouste, Le Corbusier, Latin American post-war architecture, and most recently Frank Lloyd Wright. 

Bas Smets (b. 1975) is a renowned Belgian landscape architect, civil engineer, and architect. Smets founded his Brussels-based firm in 2007, and has since completed many international projects, ranging from large parks to urban forests. His notable works include the redesign of the public space around Notre-Dame Cathedral in Paris, the Parc des Ateliers in Arles, and the Tour & Taxis park in Brussels. He is known for creating "augmented landscapes" that address climate challenges by integrating cooling microclimates and sustainable urban ecology. Smets has received numerous accolades, including the Aga Khan Award for Architecture and the French Academy of Architecture's Urbanism Award. In 2023, he was appointed Professor in Practice at Harvard's Graduate School of Design, where he teaches "Biospheric Urbanism", focusing on climate adaptation through landscape design. 

The Very Reverend Dr. Patrick Malloy, who joined the Cathedral in the summer of 2016, was formally installed as the 11th Dean of the Cathedral of St. John the Divine in December 2023.  Prior to joining the Cathedral, he served as the Interim Dean at St. John’s Cathedral in Denver. He has taught at The General Theological Seminary, New York, where he was Professor of Liturgy; St. John’s University, Collegeville; the University of Santa Clara, California; and Duquesne University, Pittsburgh. In 2008-2009, Canon Malloy, then Rector of Grace Episcopal Church in Allentown, PA, designed and was general contractor for the renovation of the church. For this work, he received an architecture design award in 2012 from the American Institute of Architects.  Dean Malloy holds a PhD in liturgical studies from the University of Notre Dame. 

Bénédicte de Montlaur is President and CEO of World Monuments Fund (WMF), the world’s foremost private organization dedicated to saving extraordinary places while empowering the communities around them. Since 1965, WMF’s global team of experts has preserved the world's diverse cultural heritage using the highest international standards at over 700 sites in 112 countries.