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New Zealand priest, John Curnow, was a prominent YCW chaplain, who went on to play an important role in other fields of social action and world development.
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Yves Congar was a French Dominican, who gave retreats to early JOC leaders and chaplains in France and Belgium, wrote extensively on the theology of the laity and played a key role at Vatican II.
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José Comblin was a Belgian-born theologian, who went to work in Brazil, where he became a JOC chaplain and a well-known liberation theologian.
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Marie-Dominique Chenu was a French Dominican theologian, who worked closely with the early JOC in France and Belgium during the late 1920s and 1930s.
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Maryknoll priest, Fr Mike Bransfield MM worked for many years in South Korea, where he was also national YCW chaplain.
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Founder of the "Federació de Joves Cristians de Catalunya" (FJCC) or 'Young Christians of Catalonia', precursor of the Catalonian JOC. Later an expert in the Preparatory Commission on Lay Apostolate at Vatic an II.
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Founder of the JOC in Asuncion, Paraguay, later a Vatican II bishop, who also played an important role in the Latin American bishops conference (CELAM) at Medellin, Colombia in 1968.
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Bishop of Cajamarca, José Antonio Dammert Bellido was a major promoter of the Specialised Catholic Action movements.
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JOC and Catholic Action chaplain in the Basque town of Arrasate/Mondragon and founder of the Mondragon Cooperatives.
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Edmund Arbuthnott was a national chaplain of the English YCW, who also wrote a short biography of Cardijn.
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Jesuit Fernando de Arango Álvarez was a Cuban JOC chaplain, who was expelled from Cuba by the Castro government and later re-organised the JOC in the Dominican Republic.
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Co-founder and chaplain of the JOC in the Diocese of Cordoba, later bishop of La Rioja. Killed by the military for his involvement with the poor and landless.
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A founding chaplain of the JOC in Lyon, later became known as the "worker bishop" after he began part-time work in a factory.
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Blessed Father Gabriele Maria Allegra was an Italian Franciscan priest, who translated the entire Bible into Chinese for the first time and who was also a student and YCW chaplain in Singapore.
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English Anglican priest who tried to launch an Anglican JOC movement.